Why Whales? What Sends Land Animals Back to Sea

What drives species to move into such a different habitat? Two paleontologists at UC Davis, Geerat Vermeij and Ryosuke Motani, set out to test these ideas by compiling a list of all the groups of mammals, birds, reptiles and amphibians that have re-occupied marine environments and comparing their time of return to the ocean with known mass-extinction events. The results were published last month in the journal Paleobiology. Read more at UC Davis News.