Central African Republic - Flora and fauna
The tropical rain forest in the southwest contains luxuriant plant growth, with some trees reaching a height of 46 m (150 ft). Toward the north, the forest gradually becomes less dense, with wider patches of grassland, and eventually gives way to the rolling hills of the savanna, interrupted by taller growths along riverbeds. Almost every animal of the tropics is found, including the elephant; its ivory was once a major source of wealth but has declined in economic importance. The southwest has a colorful variety of butterflies.