A team led by Egyptian scientists have dug up a 43 million-year-old fossil in the Sahara Desert in Egypt of a now-extinct amphibious four-legged whale.
Whales, it turns out, used to be "herbivorous, deer-like terrestrial mammals," the scientists write. Over the span of about 10 million years, whales turned into carnivorous creatures in the ocean. The discovery of the four-legged creature is part of that evolution.
