When Whales Walked

We know whales as graceful giants bound to the sea. But what if we told you there was actually a time when whales could walk. Signup for your FREE trial to The Great Courses Plus here: Produced in collaboration with PBS Digital Studios: The Great Courses Plus is currently available to watch through a web browser to almost anyone in the world and optimized for the US market. The Great Courses Plus is currently working to both optimize the produc