Why do sloths eat grass and leaves?

Sloths primarily eat leaves and some grasses because their slow metabolism and specialized digestive systems are adapted to break down the tough, fibrous material found in these plants. Leaves provide a low-energy diet that suits their slow-paced lifestyle, allowing them to conserve energy. Additionally, the high cellulose content in leaves supports their unique gut bacteria, which help in the digestion process. This diet, while low in calories, is abundant and readily available in their natural habitats.