elementals/Shutterstock

Picasso triggerfish (Rhinecanthus aculeatus)

Looking like it originated in the mind of a cartoonist, this bad-tempered triggerfish hangs out, as do others of its ilk (there are 40 species worldwide) on the ocean floor, where it digs out prey, “such as crabs and worms by flapping away debris with [its] fins and sandblasting with water squirted from [its] mouth,” according to National Geographic. It can also “lock” itself into a crevice with its spines—an action unlocked by depressing another “trigger” spine. These photos of manatees will make you love the ocean even more.