This edition: Galapagos: Darwin's Eden
First aired: November 22, 2016.
The Galapagos archipelago, way off Chile's coast, is named after the saddle shape of it iconic, century-living giant turtle species. Considered hellish by its Spanish discovers, it became a paradisaic nature reserve. Its uniquely odd land - and aquatic wildlife, evolving at record speed due to the fast emergence and transformation of volcanic islands at a tectonic crack where three major ocean currents meet, greatly inspired Charles Darwin's evolutionary theories.