Iguanas are large, herbivorous lizards that belong to the family Iguanidae. They are known for their distinctive long tails, spiky crests along their backs, and vibrant green color, although some species can be gray or even blue. Iguanas are native to tropical areas of Central America and South America, and they often live in trees, using their strong limbs and tails to climb. These reptiles are popular pets due to their unique appearance and relatively calm nature. Iguanas primarily eat leaves, flowers, and fruits, making them important for their ecosystems as they help with plant growth. However, they require specific care, including proper lighting and a spacious habitat, to thrive in captivity.