In the case of the thylacine, the first step is sequencing the extinct animal's DNA – the genetic ... from woolly mammoths into the genomes of Asian elephants to create a "cold-resistant ...

Many huge animals went extinct surprisingly recently. When they died, their ecological role was lost with them.

The dire wolf was one of the most formidable predators in the Americas during the last Ice Age, possessing a body more stout ...