Geochelone gigantea

The Aldabra giant tortoise is one of the largest tortoises in the world, native to the Aldabra Atoll in the Seychelles. These massive tortoises can weigh over 500 pounds and live well over 100 years. With domed shells, sturdy legs, and slow, deliberate movements, they are perfectly adapted to grazing on grasses, leaves, and shrubs in their island habitats.

According to the International Union for Conservation of Nature (IUCN), the Aldabra giant tortoise is listed as Vulnerable. Though the main population on Aldabra Atoll is stable thanks to its protected status, the species remains at risk from habitat loss on other islands, invasive species, and historical overexploitation. Conservation efforts focus on habitat protection, population monitoring, and captive breeding programs to ensure this iconic tortoise continues to thrive.

Aldabra giant tortoises are important ecosystem engineers. Their grazing helps maintain open grasslands, prevent overgrowth, and disperse seeds through their droppings. Their presence supports the balance of island ecosystems, benefiting countless plant and animal species.

Did you know?

They are native to the remote Aldabra Atoll, one of the largest coral atolls in the world.

Their diet includes grasses, leaves, and shrubs, and they play a key role in seed dispersal.

Some individuals live over 150 years in captivity or the wild. 

Adults can weigh between 400–550 pounds, with massive shells for protection.

They can swim short distances if necessary.