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Galapagos Tortoise

Scientific Name: Geochelone nigra
IUCN Status: Endangered
Length: up to 1.2 m
Weight: 51–320 kg
Incubation: 4.5 months
Number of eggs: 2–16

Distribution: Galapagos Islands

Description: Galapagos Tortoises are the largest tortoises in the world. They are commonly split into two groups depending on the shape of their shell or ‘carapace’. The saddle-back carapace has a curved shell front which allows the tortoise’s neck to extend and reach food in higher places.

Diet: Galapagos Tortoises are herbivores and feed on leaves and flowers. One of their favourites is the Opuntia cactus, or ‘Prickly Pear’.

In the wild: When male tortoises are competing for females, they have a ‘height fight’. The males stand tall and stretch their neck up as high as they can. The male that is the highest wins the fight. Some tortoises can reach heights of 1.5 m.

Threats: There are 14 recognised species of Galapagos Tortoise, three of which are now extinct. In the past, nearly 200,000 tortoises were taken from the island by sailors and pirates for food. Today, there are less than 20,000 tortoises living on the Galapagos archipelago.

Introduced species are now the greatest threat to these tortoises. Pigs, cats and dogs eat tortoise eggs and hatchlings. Competition from feral goats and cattle has caused a shortage of food.

At Perth Zoo: Perth Zoo’s Galapagos Tortoise exhibit is located opposite the entrance to the Lesser Primate area.

Did you know? Galapagos Tortoises are one of the longest living animals. The oldest recorded tortoise is 175 years old!



Page last updated 09 August 2007
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