Researchers explain how flatworms split into two new worms
Flatworms are known to reproduce asexually by splitting into two pieces, a head and a tail, which go on to form two worms. US-based researchers have found this fission occurs in three stagesâ waist formation, pulsation, and rupture. The two pieces regrow missing structures through stem cells, while the point of rupture determines the offspring's chances of survival and reproduction.