They can weigh over a hundred tons, live their entire lives underwater, and some even hunt using sound through a method known as echolocation. Yet, whales are also complex social creatures who share much in common with humans. This hour we talk with paleontologist Nick Pyenson about why he has dedicated his life to studying whales, or as he puts it, “Earth’s Most Awesome Creatures.” Pyenson’s new book, Spying on Whales , takes readers on a scientific quest to understand the evolutionary journey