LifeThe truth about de-extinction: is it even possible, and why do it? Ambitious projects aim to put dire wolves, woolly mammoths and passenger pigeons back into our ecosystems. But with so many technical and ethical hurdles, what is the real motivation? Features
LifeThe last woolly mammoths on Earth died from bad luck, not inbreeding A genetic study of woolly mammoths found on an isolated Arctic island shows they reached a stable population that lasted millennia, so were probably wiped out by a random event rather than inbreeding News