Scientists discover unique Brazilian frogs deaf to their own mating calls

Pumpkin toadlet frogs are only known case of an animal that continues to make a communication signal even after the target audience has lost the ability to hear it

Humans trying to chat each other up in a noisy nightclub may find verbal communication futile. But it appears even more pointless for pumpkin toadlets after scientists discovered that females have lost the ability to hear the sound of male mating calls.