The Time Before History and the Rotti-Bear

Jane was over at the Natural History Museum to check out the new hall of mammals exhibit, and that put me in mind of one of our favorite books by Colin Tudge (as unlikely as it sounds, we're huge fans) So here's a clip from "The Time Before History," and a big shout out to Arctodus simus, which he recons resembled a giant rottweiler, except it was almost twice the size of a grizzly and might have hunted in packs.