Frogs carry sharp claws like wolves

The finger of a frog rare in Japan is capable of spreading sharp claws like a werewolf character in X-Men. This frog is named Otton, living only south of Amami Island (Japan).

Otton frog

Researcher Noriko Iwa of Tokyo University found that unlike most other frogs with only four hands, Otton possesses a fifth finger with sharp claws hidden beneath the skin, which can be pushed out when needed. set.

This sharp claw is found in both sexes but the male claws look more prominent and sharp.

Iwai believes that the 'dagger' in the fifth finger is an evolutionary step that allows males to adhere to females during mating.

The fifth finger has sharp claws hidden under the skin

On the other hand, from the scars on the male body, this is also the ultimate weapon, helping fight to fight for partners without killing opponents.

In an online report published on October 18 in the zoology magazine, Iwai said: 'It seems that this Otton frog's weapon does not cause serious damage, but it still has enough power to show. Who is the winner'.

Reference: Livescience