Muskox

Muskox

These hoofed mammals have adapted to cold, harsh weather. Their wool (named qiviut) is eight times warmer than sheep's wool. It's the golden fleece of the Arctic.

Dovrefjell, Norway

Sunrise in Stroplsjødalen

Sunrise in Stroplsjødalen

We got up early to start our trek in the darkness. The sunrise that day was one of the most beautiful I've seen.

Dovrefjell, Norway

Muskox

Muskox

Dovrefjell, Norway

Muskox Herd

Muskox Herd

Muskoxen are herd animals, and infants are able to keep up with their mother and group within a few hours after birth.

Dovrefjell, Norway

Sunrise in Stroplsjødalen

Sunrise in Stroplsjødalen

Dovrefjell, Norway

The way back from Reinheim

The way back from Reinheim

Dovrefjell, Norway

Muskox

Muskox

Dovrefjell, Norway

Katnosdammen

Katnosdammen

Nordmarka, Oslo, Norway

Mallard

Mallard

Oslo, Norway

Domestic Pigeon

Domestic Pigeon

Oslo, Norway

Western Honey Bee

Western Honey Bee

Oslo, Norway

Hover Fly

Hover Fly

Oslo, Norway

Dwarf Poodle

Dwarf Poodle

This is Leo. Also known as The Prince.

Oslo, Norway

Western Honey Bee

Western Honey Bee

Oslo, Norway

Mallard

Mallard

Blue is a rare color in animals living above water. Some birds are blue, though; the male mallard, for example.

Nordmarka, Oslo, Norway

Common Frog

Common Frog

Rana temporaria

Frogs form large choruses in a competition to attract females. Stamina is important: The loudest, and longest, calls win, probably because it indicates good genes.

Lillomarka, Oslo, Norway

Slow-worm

Slow-worm

Anguis fragilis

You'll find this worm basking in the sun. It's only superficially similar to a snake, and harmless (unless you're a snail or an insect).

Nordmarka, Oslo, Norway

Scottish Fold

Scottish Fold

This queen is named Aprikos (Apricot) and her human Nikolai grows catnip for her and gives her regular grooming. They are good friends.

Vestre Fyllingen

Vestre Fyllingen

Nordmarka, Oslo, Norway

Krokvann

Krokvann

A red sunset often indicate a clear sky the following day. The reason is that dust and small particles are trapped in the atmosphere by high pressure coming in from the west. In traditional knowledge they said "Red sky at night, sailor's delight".

Siljanskogen, Norway

Damvann

Damvann

We camped at this beautiful spot after an unsuccessful search for another legendary lake in the area. We got company from the local ATV/biker gang in the evening. They left when the rain came, and we fell asleep to the sound of rain on our tarps.

Kvelde, Norway

Goat

Goat

Trollheimen, Norway

Nærøyfjord

Nærøyfjord

Flåm, Norway

One of Sognefjorden's Arms

One of Sognefjorden's Arms

Bøyaøyra, Norway

Paragliders from Skredfjellet

Paragliders from Skredfjellet

Nordfjord, Norway

Kirkhelleren

Kirkhelleren

This cave has been used by humans for over 9000 years. It's located on the small island of Sanna, one of the most westernly points on the Helgeland coast. The cave is used as a concert venue on Trænafestivalen, one of Norway's most legendary festivals

Sanna, Træna, Norway

Moose

Moose

Brønnøy, Norway

Lurøyfjellet

Lurøyfjellet

Lurøya, Norway

Old Norwegian Sheep

Old Norwegian Sheep

There are at least 19 types of sheep in Norway. They're bred for various qualities; softness of the wool, or color, tameness and taste of the meat. The Old Norwegian Sheep is also called wild sheep, and stone age sheep. It's one of the oldest sheep types we have, and forage outdoors all year. It's almost as hardcore as the Icelandic sheep.

Brønnøy, Norway

Purple Coneflower

Purple Coneflower

These flowers are rich in nectar and very popular with both bees and butterflies.

Oslo, Norway

Striated Frogfish

Striated Frogfish

Antennarius striatus

Frogfish can inhale their prey in six thousands of a second. That's one of the fastest eating methods known in the animal kingdom.

Lembeh Strait, Indonesia

Hawksbill Sea Turtle

Hawksbill Sea Turtle

Eretmochelys imbricata

The tapered head of a hawksbill ends in a sharp point resembling a bird's beak, hence its name.

Dampier Strait, Raja Ampat, Indonesia

Broadclub Cuttlefish

Broadclub Cuttlefish

Sepia latimanus

Cuttlefish have three hearts! One that pumps blood around the body and two pumping blood to the gills.

Lembeh Strait, Indonesia

Blue-Ringed Octopus

Blue-Ringed Octopus

Hapalochlaena sp.

The blue-ringed octopus flashes its 50-60 rings within a third of a second as a warning display to predators. Being one of the world's most venomous marine animals, its poison causes total body paralysis—also to humans.

Lembeh Strait, Indonesia

Purple-Edged Ceratosoma

Purple-Edged Ceratosoma

Ceratosoma tenue

Identification of sea slugs are often difficult. The keys to identification in this case is the broken purple rigde together with the placement of the three mantle lobes on both sides of the body. One lobe on either side of the head, one on the side of the gills, and one between those two.

Lembeh Strait, Indonesia

Gorgonian Coral

Gorgonian Coral

Alcyonacea (order)

Raja Ampat's biodiversity is the richest in the world and 75% of all known coral species can be found there.

Misool, Raja Ampat, Indonesia

Balloonfish

Balloonfish

Lophodiodon calori

The large dragon-like eyes help this nocturnal hunter forage for food during the night-hours. Their eye pattern is a mesmerizing sight. A friend once compared it to a reflection of the universe.

Lembeh Strait, Indonesia

Nudibranch

Nudibranch

Halgerda batangas

A distinguishing feature of H. batangas is the fine network of lines on its dorsum. What a beauty!

Lembeh Strait, Indonesia

Bullock's Hypselodoris

Bullock's Hypselodoris

Hypselodoris bullocki

Nudibranchs are hermaphrodites; simultaneously both male and female. They are still reproducing sexually, so two individuals must hook up.

Lembeh Strait, Indonesia

Flambouyant Cuttlefish

Flambouyant Cuttlefish

Metasepia pfefferi

The flambouyant cuttlefish flashes its hypnotic color scheme and pulses its fins when approached, possibly to signal its toxicity to potential predators.

Lembeh Strait, Indonesia

Mushroom Coral Reticuludia

Mushroom Coral Reticuludia

Reticuludia Fungia

There are over 3000 species of nudibranchs, and new ones are regularly found!

Misool, Raja Ampat, Indonesia

Juvenile Longhorn Cowfish

Juvenile Longhorn Cowfish

Lactoria cornuta

This fish moves by oscillating its tail fin very rapidly, creating a hover-like appearance when swimming.

Lembeh Strait, Indonesia

Ornate Ghost Pipefish

Ornate Ghost Pipefish

Solenostomus paradoxus

Lembeh Strait, Indonesia

Nudibranch

Nudibranch

Ardeadoris egretta

The term nudibranch is derived from the Greek words nudus and brankhia, meaning 'naked' and 'gill' respectively. The flower-like protrusions on the back are the exposed (naked) gills.

Misool, Raja Ampat, Indonesia

Skeleton Shrimp

Skeleton Shrimp

Caprellid sp.

The rear legs are used to hook itself to plants where it lives, in this case a bryozoan. Front claws are used for hunting and moving around.

Lembeh Strait, Indonesia

Striped Poison-Fang Blenny Mimic

Striped Poison-Fang Blenny Mimic

Petroscirtes breviceps

The strait of Lembeh is littered with garbage, but not all discarded stuff is bad for the creatures living there. An old bottle can be the safest place for a blenny to live.

Lembeh Strait, Indonesia

Broadclub Cuttlefish

Broadclub Cuttlefish

Sepia latimanus

Cuttlefish are able to change the color of their skin in an instant using a set of astonishing ten million individually controlled color cells.

Dampier Strait, Raja Ampat, Indonesia

Ribboned Sweetlips

Ribboned Sweetlips

Plectorhinchus polytaenia

This species is certainly named after their protruding fat sweet lips.

Dampier Strait, Raja Ampat, Indonesia

Bigeye Trevally

Bigeye Trevally

Caranx sexfasciatus

This fast-swimming predator can grow up to 120 cm long and form schools numbering more than 1500 individuals.

Dampier Strait, Raja Ampat, Indonesia

Nudibranch

Nudibranch

Tritonia sp.

Some nudibranchs are adapted to resemble small pieces of soft coral.

Lembeh Strait, Indonesia

Red-Lined Jorunna

Red-Lined Jorunna

Jorunna rubescens

A key feature for the Red-Lined Jorunna is its length of up to 20 cm. That's an enormous size for a nudibranch.

Lembeh Strait, Indonesia

Fluted Giant Clam

Fluted Giant Clam

Tridacna squamosa

The giant clam produces its hard shell with help from zooxanthellae, an algea that grows within the shell valve.

Dampier Strait, Raja Ampat, Indonesia

Ribboned Sweetlips

Ribboned Sweetlips

Plectorhinchus polytaenia

Groups of sweetlips often hang tucked between layers of coral, which allowed me to experiment a bit with lighting.

Dampier Strait, Raja Ampat, Indonesia

Shortfin Lionfish

Shortfin Lionfish

Dendrochirus brachypterus

Lembeh Strait, Indonesia

Giant Frogfish

Giant Frogfish

Antennarius commerson

Lembeh Strait, Indonesia

Bluestripe and Golden-lined Snappers

Bluestripe and Golden-lined Snappers

Lutjanus kasmira and Lutjanus lutjanus

The goatfish (Mulloidichthys mimicus) is part of a weird relationship with the bluestripe snapper where it mimics its colors to look almost exactly the same. The reason for that is not entirely clear, but the goatfish is presumably a more preferred prey than the bluestrip snapper. So there may be some goatfish in the fish ball as well.

Dampier Strait, Raja Ampat, Indonesia

Oceanic Manta Ray

Oceanic Manta Ray

Manta birostris

The majestic oceanic manta is a pelagic species, using the ocean currents to travel. Sites with high availability of zooplankton, such as the nutrient-rich waters of Raja Ampat, attracts them closer to the reefs to feed.

Dampier Strait, Raja Ampat, Indonesia

Red-legged Swimming Crab

Red-legged Swimming Crab

Portunus convexus

Dampier Strait, Raja Ampat, Indonesia

Balloonfish

Balloonfish

Lophodiodon calori

The balloonfish can inflate its body three times the normal size to make attacks more difficult for predators.

Lembeh Strait, Indonesia

Clown Anemonefish

Clown Anemonefish

Amphiprion percula

When anemonefish leaves it host for a long time, they need to re-adapt to the host stinging cells. To do so, the fish goes through a dance-like ritual taking several hours. Clownfish rarely move more than 30 cm from their host anemone, though.

Dampier Strait, Raja Ampat, Indonesia

Bobbit Worm

Bobbit Worm

Eunice aphroditois

Little is known about the behaviour of bobbit worms. It's theorized that the worm doesn’t see at all but uses its excellent receptors to detect movement in the water to sense nearby fish.

Lembeh Strait, Indonesia

Ornate Ghost Pipefish

Ornate Ghost Pipefish

Solenostomus paradoxus

Ornates adopt the coloration of the environment it settles in after its larval stage.

Penemu, Raja Ampat, Indonesia

Spiny Devilfish

Spiny Devilfish

Inimicus didactylus

While this genus is typically buried in the sand or perfectly camouflaged in coral rubble, they can sometimes be found crawling on the seabed using their pectoral fins as legs.

Lembeh Strait, Indonesia

Harlequin Swimming Crab

Harlequin Swimming Crab

Lissocarcinus laevis

This crab lives in symbiosis with tube dwelling anemones where it takes cover to hide from predators.

Lembeh Strait, Indonesia

Apolegma's Hypselodoris

Apolegma's Hypselodoris

Hypselodoris apolegma

Lembeh Strait, Indonesia

Ornate Ghost Pipefish

Ornate Ghost Pipefish

Solenostomus paradoxus

The ghost pipefish camouflages very well in coral reefs, and spend a lot of time floating, almost like a slow moving leaf, with its mouth pointed downwards.

Lembeh Strait, Indonesia

Reef Manta Ray

Reef Manta Ray

Manta alfredi

By swimming against the tidal current, mantas sieves zooplankton from the water. They are the only type of ray evolved to filter feed.

Baa Atoll, The Maldives

Starry Grouper

Starry Grouper

Epinephelus labriformis

Groupers typically have large mouths, fat lips and stout bodies. The starry grouper is relatively small, but still fearless enough to stay still and stare back when I was snapping a shot.

Cocos Island, Costa Rica

Indian Lionfish

Indian Lionfish

Pterois miles

Active at night, this fish will follow you and exploit your dive light to find prey.

Shaab El Erg, Egypt

Green Turtle

Green Turtle

Chelonia mydas

Surprisingly curious, this young turtle swam around us in the shallows during our way out to the Salt Pier, a gorgeous dive site on Bonaire.

Bonaire, The Netherlands

Southern Stingray

Southern Stingray

Dasyatis americana

The flat body has sharp corners and allows the stingray to efficiently bury itself in the sand to avoid predators.

Caño Island, Costa Rica

SS Thistlegorm

SS Thistlegorm

Sunk during a surprise attack by a pair of German Heinkel He-111 bomber planes in World War II. The ship is over 400 feet long, and most of its cargo is still present in, or around the wreck.

Egypt

Crocodilefish

Crocodilefish

Papilloculiceps longiceps

Yolanda Lagoon, Egypt

Pygmy Sweepers

Pygmy Sweepers

Parapriacanthus ransonneti

These fish feed on zooplankton at night. During daytime, they are usually found in shaded areas, such as inside wrecks, caves and under overhangs. They often form dense schools in these shelters.

Egypt

White Eyed Moray

White Eyed Moray

Gymnothorax thyrsoideus

Anilao, The Philippines

Scalloped Hammerhead Shark

Scalloped Hammerhead Shark

Sphyrna lewini

Cocos Island, Costa Rica

Common Starfish

Common Starfish

Asterias rubens

In addition to having the ability to regenerate limbs, most sea stars are able to eat outside of their bodies by moving its stomach inside the prey to ingest it.

Gulen, Norway

Pyjama Nudibranch

Pyjama Nudibranch

Chromodoris quadricolor

Sponges are popular food source for nudibranchs. The slugs incorporate the color from what they eat to their tissue color as camouflage. This beautiful pair have found a toxic finger-sponge (Negombata magnifica) to feed on. They won't be harmed, and instead use the chemicals to reduce the chance of being eaten.

El Minya Wreck, Egypt

Elphinstone Anthias

Elphinstone Anthias

Anthiinae (family)

Participating in a huge feeding aggregation, the massive amount of anthias make some of the visually dramatic scenes on the reef. Anthias live in harems consisting of one dominant male, a few lesser males, juveniles and a cluster of females. All anthias are hermaphrodites and begin life as female.

Elphinestone Reef, Egypt

Scalloped Hammerhead Shark

Scalloped Hammerhead Shark

Sphyrna lewini

All of our dives on Cocos featured hammerheads, most shy and in the distance like here. One of my best memories from Cocos was the ascent on a site called Manuelita, which we dove many times. What we didn't realize at first was that the hammerheads had disperged and moved away when we got there. Immediately when we started to ascend they returned. During our safety stop we saw the hoards coming from all directions and reuniting at the cleaning stations on the ocean floor.

Cocos Island, Costa Rica

Chamberlain's Nembrotha

Chamberlain's Nembrotha

Nembrotha chamberlaini

Nudibranch's eyes are located inside the body and measure about a quarter of a millimeter in diameter. These simple eyes are only coarsly able to discern differences in light intensity.

Anilao, The Philippines

Giant Moray Eel

Giant Moray Eel

Gymnothorax javanicus

Egypt

Gracile Lizardfish

Gracile Lizardfish

Saurida gracilis

Lizardfish are frequent visitors of sandy or muddy areas and lie sometimes partly buried on the sea floor.

Baa Atoll, The Maldives

Giant Frogfish

Giant Frogfish

Antennarius commerson

Frogfish don't have swim bladders. Instead they walk on the ocean floor using their non-traditional fins.

Cocos Island, Costa Rica

Crescent-tail Bigeye

Crescent-tail Bigeye

Priacanthus hamrur

Egypt

Scalloped Hammerhead Shark

Scalloped Hammerhead Shark

Sphyrna lewini

Sharks can detect electrical fields created by other animals using specialized sensory organs. For the hammerheads, these organs are spread over the oddly wide-shaped head to boost the sensitivity.

Cocos Island, Costa Rica

False Clown Anemonefish

False Clown Anemonefish

Amphiprion ocellaris

Clownfish hatch near the surface and travel deeper to search for a host anemone when they reach their juvenile stage. Within a clownfish community there is a strict hierarchy where juveniles begin at the bottom and have to gradually move upwards by proving their abilities to the rest of the population. During this time they may be victims to agression, and possibly eviction from the anemone by more mature clownfish.

Dumaguete, The Philippines

Pronghorn Spiny Lobster

Pronghorn Spiny Lobster

Panulirus penicillatus

Cocos Island, Costa Rica

Lumpsucker

Lumpsucker

Cyclopterus lumpus

Instead of having the normal type of pelvic fins (below), this fish has evolved disc-like fins and use them to adhere to the substrate.

Gulen, Norway

Norton 16H Motorcycles

Norton 16H Motorcycles

More than 100 motorcycles were aboard the SS Thistlegorm before it sunk. Many of them are still there.

SS Thistlegorm Wreck, Egypt

The Dugongs of Marsha Shouna

The Dugongs of Marsha Shouna

Dugong dugon

Dugongs are believed to be inspirations behind tales of mermaids and in parts of Indonesia they are considered reincarnations of women. The word "dugong" means lady of the sea. It's herbivorous and feed uniquely on sea grass. Their numbers are very low and in some countries they are entirely depleted due to hunting, bycatch and habitat destruction. I was extremely lucky to encounter one in Marsha Shouna on the western coast of the Red Sea, once home to thousands of dugongs but now with very few individuals. The 100 km coastline along Marsa Alam had only seven dugongs left at the time of writing.

Marsa Alam, Egypt

Juvenile Blacktip Reef Shark

Juvenile Blacktip Reef Shark

Carcharhinus melanopterus

Perhentian Besar, Malaysia

SS Carnatic

SS Carnatic

A diver explores the wreck of SS Carnatic, which broke in half after hitting the reef near Shadwan Island. 31 people drowned.

SS Carnatic Wreck, Egypt

Whitetip Reef Shark

Whitetip Reef Shark

Triaenodon obesus

The large oval eyes allow the whitetip to see well in dim light.

Cocos Island, Costa Rica

Nudibranch

Nudibranch

Hypselodoris infucata

Many nudibranchs use their brightly colored bodies to warn potential predators that they are full of distasteful chemicals. This is an alternative defence mechanism to having a hard shell, which most other molluscs use as primary protection.

Anilao, The Philippines

Magnificent Sea Anemone

Magnificent Sea Anemone

Heteractis magnifica with Amphiprion perideraion

The previous name for this anemone was the Ritteri Anemone, updated to Heteractis magnifica, or "Magnificent Sea Anemone". Perhaps so because it's too beautiful for the first dull name. The anemone can entirely retract it's tentacles. It's column, here in purple color, will then be exposed. On the matter of reproducing this anemone can do it both sexually and asexually—it can actually clone itself.

Anilao, The Philippines

Green Turtle

Green Turtle

Chelonia mydas

The fat beneath the carapace of a C. Mydas is green, which is why it's common name is "green turtle".

Bonaire, The Netherlands

Hermit Crabs

Hermit Crabs

Shaab El Erg, Egypt

Reef Manta Ray

Reef Manta Ray

Manta alfredi

The Maldives is home to around 5000 manta rays—the largest group of manta rays in the world.

Baa Atoll, The Maldives

Locomotive Engine

Locomotive Engine

Two Stanier 8F locomotive engines, part of the SS Thistlegorm's cargo, sunk together with the ship. Both locomotives are separated from the wreck.

SS Thistlegorm Wreck, Egypt

Whitetip Reef Shark

Whitetip Reef Shark

Triaenodon obesus

Cocos Island, Costa Rica

Fuchsia Flatworm

Fuchsia Flatworm

Pseudoceros ferrugineus

Flatworms lack circulatory and respiratory organs (such as gills), and respiration is performed by diffusion through the worm's entire surface. They are somewhat similar to nudibranchs in appearance, but the similarity is only superficial. It's easy to distinguish them by the lack of antennas/rhinophores, that they generally move faster. And they are also flat.

Dumaguete, The Philippines

Atlantic Tarpon

Atlantic Tarpon

Megalops atlanticus

A group of tarpons accompanied us during our night dives on Bonaire. These nocturnal hunters exploited the light from our torches to find prey.

Bonaire, The Netherlands

Tiger Shark

Tiger Shark

Galeocerdo cuvier

The tigers have excellent sense of smell and sight. Some native Hawaiians think their eyeballs have the power to look into the future.

Cocos Island, Costa Rica

Whitetip Reef Shark

Whitetip Reef Shark

Triaenodon obesus

The whitetip sharks let me close enough to get slapped by their caudal fins.

Cocos Island, Costa Rica

Whitetip Reef Shark

Whitetip Reef Shark

Triaenodon obesus

Cocos Island, Costa Rica

Juvenile Boxfish

Juvenile Boxfish

Ostracion cubicus

The members of the boxfish family display a unique behavior of blowing into the sand of the sea floor to uncover buried food, such as tasty worms and shrimps. The boxfish is one of those animals being consistently cute its entire lifetime, not just as juvenile.

Anilao, The Philippines

Reticulate Stargazer

Reticulate Stargazer

Uranoscopus chinensis

Night dives at the Anilao pier feel like something from another world. The sandy bottom comes to life with all the crabs, shrimps, worms, slugs and bottom dwellers doing their brutal routine. Many of these animals feed at night, and the site turns to a large scale battlefield when the sun sets. A stargazer approached us in the midst of the chaos, landed on the sand and burrowed its tapered body, exposing only its big, heavy, flat head and a vertically slanted mouth. He waits for passing fish before jumping upwards while creating a vacuum to suck in the prey.

Anilao, The Philippines

Scalloped Hammerhead Shark

Scalloped Hammerhead Shark

Sphyrna lewini

Cocos Island, Costa Rica

Toad Crab

Toad Crab

Hyas coarctatus

This decorator crab collects sea weed, sponges, algae and other particles in the water to improve its camouflage.

Gulen, Norway

Jordans Snapper

Jordans Snapper

Lutjanus jordani

Cocos Island, Costa Rica

Spinner Dolphin

Spinner Dolphin

Stenella longirostris

Those times I'm lucky enough to hear whistles and clicking sounds I instantly change focus from finding small stuff, snails or whatever I'm up to at the moment, and instead scout for what could be dolphins. They are fast swimmers, so if they are around, they are not necessarily for long. Most often I will not find them, but sometimes I do, and some of these encounters I believe are the dolphins approaching me more than the other way around. They are curious, playful and intelligent creatures.

Egypt

Reef Stonefish

Reef Stonefish

Synanceia verrucosa

Motionless, this fish sometimes stay at the same site for several months. Not agressive, but will inject a venom if stepped on. It's the world's most venomous fish.

The Barge Wreck, Egypt

Devil Scorpionfish

Devil Scorpionfish

Scorpaenopsis diabolus

Normally, pectoral fins are used to swim but this fish has evolved two small stilts that allow it to walk and dig the seabed instead. While this is by no means unique for an ocean species, it's still fascinating to observe this type of irregularity. Perhaps, a long time ago another species did just the same, and that is why there are creatures (such as you and me) walking on land today.

Anilao, The Philippines

Bluespotted Ribbontail Ray

Bluespotted Ribbontail Ray

Taeniura lymma

Egypt

The Hilma Hooker Wreck

The Hilma Hooker Wreck

After losing power off the coast of Bonaire, The Hilma Hooker was towed to the island's main pier. As this ship already was suspected by the DEA, a search was quickly conducted and 11.000 kg of marijuana was found. The owner of the ship however, was not. Hilma Hooker was starting to wear down and the hull was in dire need of maintenance. It was towed a couple of kilometers south in fear of disrupting boat traffic in case it sunk, which it promtly did. Now it's a great dive site, easily accessible on the western coast of Bonaire.

Bonaire, The Netherlands

Indian Lionfish

Indian Lionfish

Pterois miles

Shaab El Erg, Egypt

St. Johns Cave Systems

St. Johns Cave Systems

St. Johns is know for its array of caverns, tunnels, overhangs and swim-throughs. The sun pierce through the cracks, crevices and holes inside the caverns, guiding us through the maze. The majestetic area is like a forgotten world, mountains now covered in coral.

St. Johns Reef, Egypt

Kunie's Goniobranchus

Kunie's Goniobranchus

Goniobranchus kuniei

Anilao, The Philippines

Potato Cod

Potato Cod

Epinephelus tukula

This fish is bold. It may come really close and will sometimes tamper with your dive gear. It's latin name tukula means "man-eater" due to its large size, but it means no harm; it's just a curious and social fish.

Cod Hole, Great Barrier Reef, Australia

French Angelfish

French Angelfish

Pomacanthus paru

Bonaire, The Netherlands

Great Spider Crab

Great Spider Crab

Hyas araneus

Sandefjord, Norway

Spotted Scorpionfish

Spotted Scorpionfish

Scorpaena plumieri

The scorpionfish is commonly found virtually invisible, blending in with the environment. Do not touch.

Bonaire, The Netherlands

Chamberlain's Nembrotha

Chamberlain's Nembrotha

Nembrotha chamberlaini

Perhaps the most distinctive characteristic of nudibranchs is the pair of tentacles on the head, called rhinophores. They are chemical sensors used to smell and taste the chemicals dissolved in the water, such as food and potential mates. Many species of nudibranchs can retract these vital organs to protect them against other fish.

Anilao, The Philippines

Scalloped Hammerhead Shark

Scalloped Hammerhead Shark

Sphyrna lewini

Cocos Island, Costa Rica

Spotted Moray Eel

Spotted Moray Eel

Gymnothorax moringa

Unlike most fish who use suction to capture their prey, moray eels use two sets of jaws in their throats to drag prey inside their mouths.

Bonaire, The Netherlands

Thresher Shark

Thresher Shark

Alopias macrourus

Malapascua is known for its legendary thresher sharks. They are usually found in deep waters, but when the sun starts to rise they ascend to the cleaning stations on the sloaps of Monad Shoal. Diving starts 05.00 am.

Malapascua, The Philippines

Arminid Nudibranch

Arminid Nudibranch

Janolus sp.

Nudibranchs have shells as larva, but shed them when they mature. Shells are heavy and make moving around difficult. Most molluscs use the shell as a primary defence, but nudibranchs have developed other techniques for protection, such as toxic secretion. A few make their own poisons, but most utilize the toxic metabolites from what they eat.

Anilao, The Philippines

Spinner Dolphin

Spinner Dolphin

Stenella longirostris

Dolphins use echolocation to "see" the environment, similar to a sonar or radar. They send out bursts of clicking sounds, and based on the frequency of the return signal, and how much time the signal used to return, the dolphin can estimate what kind of objects are nearby.

Egypt

Scalloped Hammerhead Shark

Scalloped Hammerhead Shark

Sphyrna lewini

The wide-set eyes give hammerheads long visual range, better than most sharks.

Cocos Island, Costa Rica

Coleman's Shrimp

Coleman's Shrimp

Periclimenes colemani

The pair of shrimp clears a little patch on the fire urchin with their claws. The patch is just large enough to move freely around collecting small pieces of food while still being protected from predators by the urchin's toxic spines. The largest of the shrimps is always the female.

Anilao, The Philippines

Bullock's Hypselodoris

Bullock's Hypselodoris

Hypselodoris bullocki

Nudibranchs have external gills (the yellow rosette on the back), hence its name, which translates to "naked gill".

Anilao, The Philippines

Juvenile Blacktip Reef Shark

Juvenile Blacktip Reef Shark

Carcharhinus melanopterus

These, and many more, juvenile sharks were eager to become grown-up-sharks and tried to hunt small fish all day long. They didn't seem to mind me too much and allowed me to swim with them while they were hunting.

Perhentian Besar, Malaysia

Painted Frogfish

Painted Frogfish

Antennarius pictus

The social activity of this fish is rather limited, and the male will sometimes eat the female if she stays around too long after mating.

Anilao, The Philippines

Bobbit Worm

Bobbit Worm

Eunice aphroditois

The bobbit is my favorite worm. It can grow up to a meter, has a stunning purple iridescence, five antennae to sense passing fish and a scissor-like mouth to split prey in half. Most of the body is covered in sand, just enough is exposed to ambush surprised fish. This worm is quite rare, shy, and mysterious.

Anilao, The Philippines

False Clown Anemonefish

False Clown Anemonefish

Amphiprion ocellaris

Sea anemones are poisonous to most fish. The clownfish however is immune to their stinging tentacles and form a symbiotic relationship with the anemone where the clownfish receive protection from predators, and the anemone benefits from the clownfish' natural activity. For example, the wedging swimming movements from the clownfish stimulate water sirculation around its tentacles, increasing metabolism and growth.

Dumaguete, The Philippines

Two-banded Anemonefish

Two-banded Anemonefish

Amphiprion bicinctus

Egypt

Blackfin Barracuda

Blackfin Barracuda

Sphyraena genie

Barracudas aggregate in schools as protection against larger predators.

Egypt

Green Turtle

Green Turtle

Chelonia mydas

It's believed that green turtles need between 20–50 years to reach sexual maturity, and a turtle's life is not easy so very few reach adulthood. Once, the estimate was one percent. It dropped to one thousandth. Previously suffering from unrestricted exploitation by humans, turtles are now having more like a global protection status. However, their slow reproductive rate, combined with increased development in coastal areas make the species very vulnerable. Many turtles are also lost due to accidental catch by fishermen.

Marsa Alam, Egypt

Moon Jellyfish

Moon Jellyfish

Aurelia aurita

The short tentacles around the bell of the moon jelly are poisonous to small marine animals, which the jelly sometimes eat. A complete meal is ensured by using a layer of mucus covering the creature to catch plankton.

Egypt

The Bow of Chrisoula K

The Bow of Chrisoula K

This cargo ship was headed for Jeddah packed with Italian tiles, but never made it.

Sha'ab Abu Nuhas Reef, Egypt

Blackfin Barracuda

Blackfin Barracuda

Sphyraena genie

A streamlined predator, very powerful with fearsome teeth. Its torpedo like body of almost pure muscle makes it extremely fast. A fascinating fish commonly seen schooling.

Apo Reef, The Philippines

Scalloped Hammerhead Shark

Scalloped Hammerhead Shark

Sphyrna lewini

Cocos Island, Costa Rica

Red Sea Corals

Red Sea Corals

Water temperatures in the Red Sea peaks at 35 degrees celcius. Most reefs bleach and die off in such conditions while the Red Sea corals linger on. They are remarkably resilient to high temperatures. Scientists are trying to figure out the key to this crucial ability, with hope of some day be able to salvage reefs currently suffering from rising sea temperatures in other parts of the world.

Egypt

Christmas Tree Worm

Christmas Tree Worm

Spirobranchus giganteus

This pair of feather-like tentacles, called radioles, is used for respiration and to catch floating plankton and microscopic plants. Each worm has one pair of these radioles.

Bonaire, The Netherlands

Leopard Anemone Shrimp

Leopard Anemone Shrimp

Izucaris masudai

A rare, beautiful shrimp. It's name is derived from where it was found: the Izu Peninsula in Japan.

Anilao, The Philippines

Graeffe's Sea Cucumber

Graeffe's Sea Cucumber

Pearsonothuria graeffei

The sea cucumbers are scavengers, crawling mostly around the sea floor. Not always though: since their gametes float around in the water column a vertical positioning is thought to increase the chance of successful reproduction for both male and female.

Anilao, The Philippines

French Grunt

French Grunt

Haemulon flavolineatum

Bonaire, The Netherlands

Emma's Hypselodoris

Emma's Hypselodoris

Hypselodoris emma

Anilao, The Philippines

Chain Moray Eel

Chain Moray Eel

Echidna catenata

Bonaire, The Netherlands

Gloomy Tambja

Gloomy Tambja

Tambja morosa

Anilao, The Philippines

Green Turtle

Green Turtle

Chelonia mydas

The green turtles inhabit coastal areas of as many as 140 countries. The Caribbean Islands have one of the largest populations of green turtles in the world.

Bonaire, The Netherlands

Tassled Scorpionfish

Tassled Scorpionfish

Scorpaenopsis oxycephala

An ambush predator that excels at blending in with the surroundings. Highly venomous.

Egypt

Bluecheek Butterflyfish

Bluecheek Butterflyfish

Chaetodon semilarvatus

Egypt

Tube Dwelling Anemone

Tube Dwelling Anemone

Cerianthus sp. (not confirmed)

Not a true anemone, this animal construct a tube in the sand in which it lives. The entire body, including more than 200 tapering tentacles, can be retracted inside the tube for protection.

Anilao, The Philippines

Dwarf Minke Whale

Dwarf Minke Whale

Undescribed (Balaenoptera acutorostrata subspecies)

In Australia, a group of whales circled us and gradually came closer for each round they took. As they moved closer we could recognize their fine details, their uniqueness and beauty. Scientists in Australia use the spots on their skin to distinguish them from each other and is the primary method used to count the number of individuals. We dove with all together five minke whales for almost two hours before they perished into the open sea. It was a once-in-a-lifetime experience I will never forget.

Ribbon Reefs, Great Barrier Reef, Australia

Glass Anemone Shrimp

Glass Anemone Shrimp

Periclimenes brevicarpalis

Anilao, The Philippines

Giant Frogfish

Giant Frogfish

Antennarius commerson

In just two weeks, the frogfish can change its own color to match the environment. They generally do not move very much, but sometimes use the pelvic fins (the ones below the body) to walk along the sea floor. Their pectoral fins (one on each side) are used for stability.

Anilao, The Philippines

Juvenile Longhorn Cowfish

Juvenile Longhorn Cowfish

Lactoria cornuta

A peaceful fish having horns as defence to make it more difficult for predators to swallow it. The cowfishes are, sadly, a common target for the aquarium industry due to their adorable looks.

Anilao, The Philippines

Silky Shark

Silky Shark

Carcharhinus falciformis

Once abundant in the world's oceans, now overfished and in some places depleted. The silky is the shark second most commonly taken as bycatch due to commercial fishing of tuna, it's favored prey.

Elphinestone Reef, Egypt

Juvenile Blacktip Reef Shark

Juvenile Blacktip Reef Shark

Carcharhinus melanopterus

Perhentian Besar, Malaysia

Banded Coral Shrimp

Banded Coral Shrimp

Stenopus hispidus

Prefers to live in caves, often seen upside down. Cleans parasites from fish cruising by.

Bonaire, The Netherlands

Fire Urchin

Fire Urchin

Astropyga radiata

Often found in shallow areas, this type of urchin sometimes carpet the sandy floor in large aggregations. Having iridescent blue dots, radiant bodies and long spines, they contribute to brighten up the muddy coast of Anilao.

Anilao, The Philippines

White Eyed Moray

White Eyed Moray

Gymnothorax thyrsoideus

Moray eels are shy creatures usually seen peeking out from rocks and coral formations with only their heads exposed. Most of the long slender body is hidden inside crevices, where it retreats completely if you approach too fast or come too near.

Dumaguete, The Philippines

Titan Triggerfish

Titan Triggerfish

Balistoides viridescens

Scattered throughout the world's seas, the triggerfish is usually a solitary fish. It's territorial and can be nasty to intruders if there are eggs to protect. Be respectful and watch its signals, an erect dorsal spine (on top of the fish) means stay away.

Egypt

Chestnut Moray Eel

Chestnut Moray Eel

Gymtothorax castaneus

Cocos Island, Costa Rica

Tufted gray langur

Tufted gray langur

Semnopithecus priam

A female langur and her baby. The offspring stay attached to their mother for the first three months of their lives.

Sri Lanka

Scalloped Hammerhead Shark

Scalloped Hammerhead Shark

Sphyrna lewini

Hammerheads are often seen in large schools during the day, but at night they feed solitary. The stingray is it's favored prey.

Cocos Island, Costa Rica

Round Ribbontail Ray

Round Ribbontail Ray

Taeniura meyeni

This type of ray is overfished across much of it's range. However, they thrive around Cocos and we saw them on almost all dives.

Cocos Island, Costa Rica

Dead Man's Fingers

Dead Man's Fingers

Alcyonium digitatum

Colonies of these soft corals are known to live for over 20 years in the cold northern Atlantic Ocean.

Sandefjord, Norway

White-spotted Hermit Crab

White-spotted Hermit Crab

Dardanus megistos

A hermit crab's home is the shell of a gastropod, usually snails. As they grow, larger shells are required. However, suitable intact shells are of limited resource and competition for the best shell among hermit crabs is common. If a crab looking for new vacancy finds a shell that is too large, it will stay in its current shell and wait by the vacant shell for other hermit crabs to arrive. As other crabs arrive and check the shell, they will do the same and when finally one finds the vacant shell suitable, each crab exchange shells in sequence.

Anilao, The Philippines

Smooth Trunkfish

Smooth Trunkfish

Lactophrys triqueter

Using its large mouth, the trunkfish expel a jet of water on the seabed to reveal hidden treats like worms and small crustaceans.

Bonaire, The Netherlands

Whitetip Reef Shark

Whitetip Reef Shark

Triaenodon obesus

Whitetips feed at night and their usual shy attitude during daytime disappear completely. You swim with hundreds of sharks when diving at night on Cocos. This dive is one of my all-time favorites.

Cocos Island, Costa Rica

Spotted Eagle Ray

Spotted Eagle Ray

Aetobatus narinari

The gorgeous eagle rays can grow up to five meters, including a whip-like tail.

Cocos Island, Costa Rica

Bluecheek Butterflyfish

Bluecheek Butterflyfish

Chaetodon semilarvatus

Endemic to the Red Sea and Gulf of Aden, the bluecheek butterflyfish is one of the few species of fish that have long-term mates.

Egypt

Potato Cod

Potato Cod

Epinephelus tukula

A large, friendly and curious fellow. The potato cods are rare but territorial, thus quite easy to find once located. They seem to chill out at the same place, getting cleaned by wrasses. One of the potato cods on the barrier reef was so large it was nicknamed VW Beetle.

Cod Hole, Great Barrier Reef, Australia

Garden Eels

Garden Eels

Sometimes mistaken for swaying seagrass, these small eels live in colonies that can reach over a thousand individuals. Each eel has its own burrow in the sand that it seldom leaves.

Dumaguete, The Philippines

Common Lionfish

Common Lionfish

Pterois miles

Egypt

Mexican Hogfish

Mexican Hogfish

Bodianus diplotaenia

All Bodianus d. start life as female and later become males.

Cocos Island, Costa Rica

Anna's Chromodoris

Anna's Chromodoris

Chromodoris annae

Dumaguete, The Philippines

The Hilma Hooker Wreck

The Hilma Hooker Wreck

Bonaire, The Netherlands

Juvenile Blacktip Reef Shark

Juvenile Blacktip Reef Shark

Carcharhinus melanopterus

Patrolling the shallows, half a dozen or so juvenile blacktips are using the safe nursing grounds outside a small beach on the island Perhentian Besar to practice the skill of hunting.

Perhentian Besar, Malaysia

Spotted Scorpionfish

Spotted Scorpionfish

Scorpaena plumieri

Skin flaps and feathery fins help this fish to camouflage against the surrounding coral.

Cocos Island, Costa Rica

Klara of Pandan Island

Klara of Pandan Island

On a tiny island just outside Mindoro in the Philippines lives an old parrot named Klara, watched over by the two owners of the island. Over time I learned there was more to the story than just keeping a parrot as a pet. In fact, it's very touching but too long to write here. Ask me one time if you want to hear it.

Pandan Island, The Philippines

Scalloped Hammerhead Shark

Scalloped Hammerhead Shark

Sphyrna lewini

Cocos Island, Costa Rica

Spottail grunt

Spottail grunt

Haemulon maculicauda

Longer and thinner than most grunts, the spottail is named after the black botch at the base of the caudal fin.

Caño Island, Costa Rica

Hermit Crab

Hermit Crab

Baa Atoll, The Maldives

Harlequin Swimming Crab

Harlequin Swimming Crab

Lissocarcinus laevis

This cool crab, decorated with awesome symmetric spots, is part of a family that, with the help of a pair of broad paddle-like legs, can swim. It's around one centimeter long and can be seen around tube anemones.

Anilao, The Philippines

Shore Diving Bonaire

Shore Diving Bonaire

The entire coastline of Bonaire's leeside is fringed by a beautiful coral reef, most of it accessible from shore. The reef starts at about two meter depth, so you could easily stay the entire dive at only a few meters depth if you want.

Bonaire, The Netherlands

Giant Moray Eel

Giant Moray Eel

Gymnothorax javanicus

Born as male and turns into female later in life, this eel can grow up to three meters long.

Egypt

Magnificent Chromodoris

Magnificent Chromodoris

Chromodoris magnifica

Anilao, The Philippines

Nudibranch

Nudibranch

Limacia clavigera

Gulen, Norway

Nudibranch

Nudibranch

Phyllidiopsis shireenae

Anilao, The Philippines

Reticulated Chromodoris

Reticulated Chromodoris

Chromodoris reticulata

Anilao, The Philippines

Wire Coral Shrimp

Wire Coral Shrimp

Pontonides unciger

Lives exclusively on the black coral whip, usually in pairs. I found only one, but they are very well camouflaged and small, so perhaps a second companion was around somewhere. You may wonder why the whip is called black coral when it's bright green, and the reason is due to its black inner skeleton. The outer flesh varies in color and P. Unciger shrimps adapt by changing their own skin to match the coral's color.

Anilao, The Philippines