North America used to be crawling with giant mammals, from dire wolves to big cats. Horses and camels evolved on the continent while others, like bison, crossed over from Asia. Most of these mammals ...

First the dire wolf, now NZ's giant moa: Why real 'de-extinction' is unlikely to fly by Nic Rawlence, The Conversation edited by Lisa Lock, reviewed by Andrew Zinin Editors' notes ...

The Trump administration is telling the state of Colorado it can no longer import wolves from Canada. That's according to a ...