What is the largest species of tortoise?

The largest species of tortoise is the Galápagos tortoise (Chelonoidis nigra), which can weigh up to 417 kilograms (920 pounds) and grow to 1.2 meters (4 feet) in length. Native to the Galápagos Islands, these tortoises are known for their slow movement and long lifespan, often living well over 100 years. They feed primarily on grasses, leaves, and cacti, and their size and thick shells provide protection from predators. The species is critically endangered due to habitat loss, hunting, and the introduction of non-native animals.