Newts and salamanders can regrow limbs that were severed off. Watch this classroom-ready science animation to see how stem cells enable regeneration.
This video is part of the 2006 Holiday Lectures on stem cells. Watch the rest of the lectures, or download the animation, on the BioInteractive website: /redirect?redir_token=BRJzGubp3a0HrLmu15hwdoVJC958MTUwOTM0OTA1NkAxNTA5MjYyNjU2&q=http%3A%2F%2Fwww.hhmi.org%2Fbiointeractive%2Fnewt-limb-regeneration&event=video_description&v=byLDgtSMI0w