Santa Cruz is the second largest island of the Galapagos Archipelago, with a surface area of almost 1,000 sq. km, and an estimated population of 20, 000 inhabitants. This is a must stop for visitors, because two important organizations are based here—the Charles Darwin Research Station and the Galapagos National Park Service. These two groups have been working together on multiple conservations projects since 1959. One important project is the captive breeding in order to revitalize the populations of five species of giant tortoises. One of these populations started with only 14 tortoises, from Espanola Island in the 1960s. Now more than fifty years later, the population has grown to almost 2,000 individuals, saving this species from the brink of extinction. We learned about the carefully implemented steps of this project that have led to its success during our visit to the breeding center this morning.