A Whale of a Story

The proposed sequence of the fossilized remains of the evolutionary ancestors of modern whales has long been hailed as one of the clearest pieces of evidence of evolution in action – beginning some 50 million years ago (Ma) with land-dwelling hoofed animals (Mesonychids) and ending with modern whales.   First, let’s consider Pakicetus (pictured above).  In 1983, Philip…