Hold on to your head folks….your mind’s about to be blown! Or not, if you’re an acorn worm.

Acorn worms are capable of regenerating many parts of their body, including their head! This Wednesday’s comic, headless hemichordates, was inspired by last week’s Friday Harbor Labs seminar given by Dr. Billie Swalla (University of Washington) about acorn worm regeneration research done in her lab in collaboration with former student Dr. Shawn Luttrell.

Check out this article and video to learn more about these fascinating worms.