
Image: Dr. Robert W. Boessenecker
Scientists in Egypt have announced that they have discovered the fossilized bones of a previously unknown amphibious, four-legged species of an ancestral whale. The semiaquatic whales called protocetids, existed over forty million years, during the Eocene period, according to findings published Wednesday in the peer-reviewed journal Proceedings of the Royal Society B. Since protocetids were amphibious, they represent a unique period in whale evolution that largely still remains a mystery.
The researchers behind the study believe the newly discovered fossil offers clues as to how whales transformed from land-dwellers to the sea creatures we know today.