34 cm.

You may have been shocked by the various giant frogs uploaded on the Internet. In fact, their prototypes are all Goliath frogs that live in Cameroon and Equatorial Guinea. This is the largest frog in the world. They grow to 34 centimeters and weigh 3.3 kilograms. Their tadpoles are almost as big as an adult's hand, which is not the same size as our common bullfrogs.

In 1966, American scientists discovered this giant frog during an expedition to Goliath in Africa and named it "Goliath Frog."

The price of huge size

Although the Goliath frog's huge size makes it look intimidating, it also brings a lot of trouble to itself. First of all, the huge size makes local residents particularly like to eat this kind of frog, which has the same experience as the bullfrog;

Secondly, because of their huge size, in order to protect the next generation, they have to take some extraordinary measures. measure. Scientists have discovered that Goliath frogs are very responsible parents, building ponds as nests for their offspring, and Goliath frogs are the first African amphibians we know of to have nesting behavior.

To confirm this theory, scientists scoured the banks of Cameroon's Mpola River and found evidence of nesting. *** They found 22 potential breeding sites where rocks and other materials were found. They piled up in a way that doesn't happen naturally, and in 14 of them, nearly 3,000 eggs were found.

The nests are usually built on the edge of fast-flowing rivers, providing a safe haven for their eggs and tadpoles, protecting them from the turbulent river water and the many predators that live there.

Goliath frog nests generally come in three different types: natural rock pools where the frog clears leaves and debris; shallow pools where material is dug out from the center and lines; and larger depressions where larger rocks are cleared. It is then moved to the edge of the nest to provide a barrier. This last type of nest has been scientifically proven to be the most effective against flash floods.