The reserve now consists of more than 650 radiated tortoises and 600 Aldabra tortoises. The radiated tortoises are considered to be one of the most beautiful tortoises in the world, with a carapace (shell) decorated with brilliant yellow lines radiating from the centre of each plate, creating a very distinctive pattern which also provides them with camouflage in their natural habitat. The Aldabra tortoises are the last surviving giant tortoise species that once inhabited the Indian Ocean islands and all the young tortoises seen were born in the reserve.