When it comes to making noise, both parrots and humans rely on extremely specialized vibrating organs in their throats. Now scientists at Indiana University and Leiden University in The Netherlands ...

BLOOMINGTON, Ind. -- When it comes to making noise, both parrots and humans rely on extremely specialized vibrating organs in their throats. Now scientists at Indiana University and Leiden University ...

In a recent finding that throws new light on mechanisms of animal vocal communication, researchers have shown that parrots can modify the sound of their vocalizations by articulating their tongue.