What is the largest frog species in the world?

The Goliath frog is the largest living frog species in the world. Its scientific name is Conraua goliath, and it is native to fast-flowing rivers and waterfalls in Cameroon and Equatorial Guinea.

Exceptional Goliath frogs can reach roughly 45 centimeters in snout-to-vent length and weigh several kilograms. Their enormous size makes them stand out even among other large frogs, including the African bullfrog, cane toad and American bullfrog. Size records can vary depending on whether researchers measure body length, total length or weight, but the Goliath frog remains the accepted largest living frog by overall body size.

The species’ large body is matched by powerful legs and broad, fully webbed feet, adaptations useful in its river habitat. Researchers have also observed Goliath frogs creating or modifying nesting pools, sometimes moving substantial stones.

Despite its size, the Goliath frog is endangered. Hunting for food, habitat loss and collection for the pet trade have reduced its numbers. It is not the largest living amphibian overall: that title belongs to a giant salamander, not a frog.