If you throw a mouse from a skyscraper onto something soft, let’s say – a stack of mattresses, the mouse would land and be stunned for a moment but probably survive. But, if you throw a dog and an elephant, the dog would break all of its bones and die in an unspectacular way, and the elephant would explode into a red puddle of bones and insides. Why would the mouse survive the fall, but the dog and elephant wouldn’t?
Scientists at Harvard are working on to resurrect the woolly mammoth from extinction through an ambitious feat of genetic engineering. According to the scientist leading the 'de-extinction' effort, the team could be just two years away from creating a hybrid elephant-mammoth embryo, in which the genes extracted from the frozen remains of woolly mammoth would be spliced into the DNA of an Asian elephant.