It's no secret that espionage and spycraft are common tools in the murky realm of geopolitics -- but not every spy is some sort of James Bond type character in a bespoke suit with a penchant for martinis. In fact, some spies aren't even human. Join Ben and Noel as they dive -- and fly -- into the strange stories of animal spies and nonhuman government operatives, from crows to dolphins, sea lions, cats and more.

CLASSIC: The War of the Stray Dog: How Far Would You Go For Your Pet?
37:09

Ancient Wonders of the Modern World: the Lighthouse of Alexandria
27:55

People Knew the Earth Was Round Way Earlier Than You Think
41:31