Its species name mutabilis means "changeable" — and it's fitting in more ways than one. The caps look dramatically different depending on moisture: when wet they're smooth, greasy, and dark brown, but as they dry they fade from the center outward, creating that "two-toned" look that gives it names like "two-toned woodtuft."

DSC00906.jpg

Sheathed Woodtuft

The aurora is happening far above the clouds—typically around 100–300 km above Earth. So when you see the northern lights dancing over a mountain, they can actually be hundreds of kilometres above it.

DSC05133.jpg

Botnvatnet

The western honey bee communicates through dance. The dancers' Hivemates sometimes butt their heads against the dancer and produce a little "stop signal" buzz to tell her the advertised location was a bad one when they disagree.