This prehistoric quadruped discovered on the coast of Peru was similar to a modern-day otter or beaver — except it was 13 ...

Baleen whales, known scientifically as Mysticeti, are a fascinating group of marine mammals that have evolved unique feeding mechanisms and adaptations over millions of years. Their fossil record ...

Follow their extraordinary journey from shore to sea. Although whales are expert swimmers and perfectly adapted to life underwater, these marine mammals once walked on four legs. Their land-dwelling ...

Hind legs thickened into pistons ... Thanks in large part to Philip Gingerich, the fossil record of whales now offers one of the most stunning demonstrations of Darwinian evolution rather than ...

The fossil whale bones have both extensive in-filling and extra growth of bone on the outside as well, a condition called ...