A work still in progress, I'm thinking about adding a second block. . .
30'' x 44''
Despite their physical resemblance to pigs and other terrestrial even-toed ungulates, their closest living relatives are cetaceans (whales, porpoises, etc.) from which they diverged about The common ancestor of whales and hippos split from other even-toed ungulates around The earliest known hippopotamus fossils, belonging to the genus Kenyapotamus in Africa, date to around .