Underwater Acrobats

cephalopods. They have soft bodies with no bones, making them really flexible.

Because they don't have a stiff skeleton, they can squeeze through tight spaces, becoming all bendy

and stretchy like underwater acrobats. They have a bunch of nerve cells in clusters called

ganglia that help them figure out all sorts of things. And imagine having not one,

but eight arms. Each arm has suction cups that can sense chemicals, touch,

and irritation.