Unlike their turtle cousins, tortoises are exclusively terrestrial (land-dwelling) reptiles. There are about 300 species of living tortoises today and they can be found all over the world except Antarctica. Tortoises have long life spans; in fact, some have been recorded to have lived longer than 150 years! Unfortunately, most tortoises are at risk of becoming endangered or are already considered critically endangered. Learn more about tortoises when you visit them in Nairobi. Get up close and personal with the Aldabra Tortoise with an Insider Tour.