What Did The Blue Whale Evolve From? The descendants of Dorudon went on to evolve into modern whales. About 34 million years ago, a group of whales began to develop a new way of eating. They had flatter skulls and feeding filters in their mouths. These are called baleen whales, which include blue whales and
How Does This Difference Show That Whales And Animals With Four Legs Are Probably Descended From A Common Ancestor? Whales’ ancient ancestors had legs and could walk on land. How does this difference show that whales and animals with four legs are probably descended from a common ancestor? Because of the homologous structures. … It
What Happened To The Leg Bones In The Modern Whale? In whales, however, the story is more complex. Between 41 million and 50 million years ago, whales’ hind limbs did shrink greatly as the former land animals began a return to the sea. But their legs showed no change in the basic arrangement and number