Add Yahoo as a preferred source to see more of our stories on Google. Haddadus binotatus emits a distress call at frequencies that humans cannot hear, but predators can. Ultrasound in nature are ...

Lots of frogs around the world use a scream to scare off predators but scientists have found frogs in the Brazilian Atlantic Forest that can scream at an ultrasonic level. Researchers saw small leaf ...

Holly has a degree in Medical Biochemistry from the University of Leicester. Her scientific interests include genomics, personalized medicine, and bioethics.View full profile Holly has a degree in ...

Some frogs scream at an ear-splitting volume for other animals but its frequency is inaudible to humans, scientists have discovered. While out in the Amazonian jungle studying frogs, researchers in ...

A video of a screaming cape rain frog encountered near Cape Town, South Africa, is drawing amusement as it makes its way around the Internet—but experts say the footage clearly shows a frog in ...

Scientists have finally managed to record the ear-piercing screams that a frog in the Amazon rainforest makes to defend against predators. It’s the first reported case of the use of ultrasound by an ...