Protecting endangered giant tortoises with Celina Chien

"These tortoises are absolutely the ecosystem engineers. They are incredible grazers, they are nutrient cyclers, they are seed dispersers, also just mechanically they are the largest creatures on these islands." In the latest episode of Rewilding the World Ben Goldsmith talks with Aldabra tortoise champion Celina Chien. The islands of the Indian Ocean once teemed with giant tortoises but European sailors harvested them nearly to extinction. Now the Indian Ocean Tortoise Alliance i...