Gardiner's frogs from the Seychelles islands, one of the smallest frogs in the world, do not possess a middle ear with an eardrum yet can croak themselves, and hear other frogs. An international team of scientists using X-rays has now solved this mystery and established that these frogs are using their mouth cavity and tissue to transmit sound to their inner ears.
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/C...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/C...