Considered endemic, the Aldabra Giant Tortoise (Aldabrachelys gigantea) is one of the largest tortoises in the world, native to the islands of Aldabra Atoll in the Seychelles. The Aldabra giant tortoise, from the islands of the Aldabra Atoll in Seychelles, is one of the largest tortoises in the world . Females can produce multiple clutches of eggs in a year. The males have a concave plastron (belly shell) that aids in mating. Physical Description: Aldabra tortoises' carapace (or upper shell) has a small neck plate that is usually visible, a feature absent in other species of giant tortoises. Aldabra Giant Tortoise Aldabra Giant Tortoise Classification and Evolution. Reaching up to 150 years in age, these tortoises are among the longest-lived animals on the planet. One criterion for selection is a partner’s relative size; males which have a carapace of 50 cm or more in length generally only select mates that are between 45 and 65 cm long. Aldabra giant tortoises appear to be polygynandrous (promiscuous), both males and females having multiple partners. Aldabra Giant Tortoise for sale -Giant Aldabra Tortoises and Breeding. This species is widely referred to as Geochelone gigantea but is now placed in the genus Dipsochelys (or sometimes in the invalid genus Aldabrachelys) as Dipsochelys dussumieri. We have just a few super cute CAPTIVE BRED baby Aldabra tortoise for sale available in hatchling, 6-month-old well started baby, and yearling sizes! They are dark gray to black in color with a highly domed, thick carapace. Usually less than half of the eggs are fertile. Between February and May, females lay anywhere from nine and 25 eggs in a shallow nest. After incubating, the tiny tortoises hatch between October and December. The Aldabra Giant Tortoise (Geochelone gigantea), from the islands of the Aldabra Atoll in the Seychelles, is one of the largest tortoises in the world.