Tortoise live entirely above water, only wading into streams to clean themselves or to drink. In fact, they could drown in deep or swift current. Their feet are hard, scaly, and nubby so it can crawl across sharp rocks and sand. Tortoises often have claws to dig burrows, which they occupy during hot, sunny weather or during sleep. Tortoises are mostly herbivorous, eating cactus, shrubs, and other plants that have a lot of moisture. They rarely migrate. Their shell forms a rounded dome, allowing the tortoise's limbs and head to withdraw for protection.
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