Nick Pyenson is curator of fossil marine mammals at the Smithsonian Institution and the author of Spying on Whales.
Books by Nick Pyenson
Interviews with Nick Pyenson
The predators that stalked our ancestors have been marginalised to the brink of extinction, but these animals still fill us with awe, says Nick Pyenson. They play a vital role in life on Earth, and we need to understand them if we are to survive.