 Not only that, the team has been able to peer into the genome to start learning what individual mammoth genes did. That's really exciting to be able to look at an extinct creature and be able to say, oh yes, I can see this gene was on, that gene was on, this gene was off. Oh, isn't that surprising? The ability to do all these sorts of specific things in woolly mammoths is exciting. In fact, by comparing the mammoth genome to DNA from modern elephants, the scientists have already discovered clues to what made the woolly mammoth, well, woolly.