By about 50 million years ago, they'd reached the stage exemplified ... the fossil record of whales now offers one of the most stunning demonstrations of Darwinian evolution rather than a ...

From 18 to 10 million years ago, the last stage of evolution witnessed extreme skull specialization, especially in species like the sperm whale. In this period, the perfection of echolocation ...

As evolutionary biologist Neil Shubin points out, "In one sense, evolution didn't invent anything new with whales. It was just tinkering with land mammals. It's using the old to make the new." ...

These fossils represent one of the major stories of evolution: the emergence of the whale as an ocean-going mammal from a previous life as a land-based animal. This is the most important site in the ...

Understanding human evolution through the study of whale evolution Brief definition and history of mammals How did land-based mammals return to the sea? Fossils from "transitional species" trace ...