Bullfrog, (Lithobates catesbeianus), a semi-aquatic frog (family Ranidae), is named for its loud call. This largest species of frog in North America, native to the eastern United States and Canada, has been introduced into the western United States and other countries. The name also applies to other large frogs, such as Pyxicephalus adspersus in Africa, Rana tigerina in India, and several species of Leptodactylidae in South America.
Source: Nature on PBS
The color of bullfrogs ranges from green to olive or brown with a white to yellowish belly and dark streaked legs. Body length about 20 cm (8 inches); hind legs up to 25 cm (10 in). Adults weigh 0.5 kg (1 pound) or more. Bullfrogs usually live in or near still bodies of water. They breed in early summer; The eggs are laid in water and hatch into greenish-brown tadpoles with black spots. Depending on the climate, the tadpole stage lasts from one to three years. Many species of bullfrogs are captured for food.
