NOVA Online | Into the Abyss | Inside a Tubeworm (sans)
Inside a Tubeworm (Hot Science)
Tubeworms are animals, just as you and I are, yet they have no mouth, no
stomach, no intestine, and no way to eliminate waste. How do they live? Get the
inside poop on a giant tubeworm, a creature so unusual that biologists
initially placed it in its own special class in the animal kingdom, the
vestimentiferans. (Say that five times fast!)