The Giant Galapagos Tortoise The giant tortoise is the biggest living tortoise, native to 7 islands of the Galapagos Archipelago. When fully adult, it can weigh over 300 kilograms (661pounds) and measure 1.2 meters (4 feet) long. It has a long life with a life expectancy in the wild of approximately 100 to 150 years. The population has decreased drastically due to hunting and the introduction of predators and herbivores by humans since the 17th century. Nowadays, there are only 10 subspecies from the original twelve that still exist in nature.
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