Diego is a Hood Island giant tortoise whose high libido helped save his species. He fathered >900 offspring who were released in the Galápagos, helping increase the wild population from 15 to >2,000. After 80 years in captivity, Diego is now retired in the Galápagos. – WTF Fun Facts
Source: Tortoise whose storied sex drive helped save his species is finally retiring | Articles | omaha.com