The Giant Galapagos tortoise (or Chelonoidas nigra) is a species of reptile endemic to the Galapagos Islands and does not appear anywhere else in the world. They come in two types – saddleback shelled and dome shelled – and both variants have a dull grey-brown shell and scaly, grey coloured skin. Saddleback shell tortoises have long necks and live in dry lowland areas, while dome shell tortoises have short necks and live in humid highland areas. Both can grow to extremely large sizes, with the average male weighing between 272 and 317kg, and the average female weighing between 136 and 181kg.
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Chelonoidas nigra
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Animal Facts
The tortoise's shell is made up of conjoined protective keratin plates that are fused with the ribs.
There are multiple subspecies of Giant Galapagos tortoises across the islands. The size and appearance of the tortoises is often different depending on which island they are from.
Galapagos tortoises have a mutualistic relationship with finches and mockingbirds on the islands, allowing these birds to remove parasites from where their legs meet their shell.