The Gaboon Viper, Pangolin, and bioluminescence

The Gaboon Viper is a lovely snake with incredible rectangular bands running down its spine:

(How often do you see rectangles in nature?) They’re super deadly, of course, so I don’t recommend petting one.

The Pangolin (native to Asia and Africa) is clearly a miniature dragon:

Somebody please domesticate these so I can have a pet dragon.

I have read that bioluminescence is the most common form of communication on Earth.

It certainly is lovely! (That little guy’s a bioluminescent bobtail squid.)

That last one is a mushroom, not a jellyfish.

Drawings by Ernst Haeckel.