Keep your head: the self-decapitating sea slugs that regrow their bodies - hearts and all

The disembodied head of the sacoglossan sea slug feasts on algae while its old body decomposes, and a new one growsIf you can keep your head when all about you are losing theirs, then it's unlikely that you are a sacoglossan sea slug (apologies to Rudyard Kipling).Scientists in Japan have discovered that this species of sea slug can decapitate itself and then regrow an entirely new body, complete with a beating heart and other vital organs. Continue reading...