The largest species of terrestrial frog is the Goliath frog, scientifically known as Conraua goliath. Native to the rainforests of Cameroon and Equatorial Guinea in Africa, Goliath frogs can weigh up to 3.3 feet in length and over 30 pounds. This massive amphibian is known for its impressive size, large hind legs, and powerful swimming abilities. Goliath frogs inhabit rivers and streams, feeding primarily on insects and small invertebrates, and are known for their ability to leap distances of up to 10 feet.