British scientists have made a surprising discovery after studying how tadpoles of the African clawed frog (Xenopus laevis) and the Western clawed frog (Xenopus tropicalis) re-grow their tails. The discovery could have big implications for research into human healing and regeneration. Top: tadpole and adult of Xenopus tropicalis. Bottom: tadpole and adult of Xenopus laevis. Scalebar – 1 mm (Uffe Hellsten et al., 2010) It is generally appreciated...
