From ancient stories of shapeshifters to works of fiction like "The Island of Dr. Moreau", humanity has always been fascinating with the line between people and non-human animals -- but modern technology may finally allow us to create real-life chimeras. In fact, it already has. The only question here is how far scientists have actually gone in this regard (and whether that's something they don't want us to know).

Learn more about your ad-choices at https://www.iheartpodcastnetwork.com

They don't want you to read our book.: https://static.macmillan.com/static/fib/stuff-you-should-read/

See omnystudio.com/listener for privacy information.