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 ...

A study reported in the journal Acta Ethologica recorded the use of ultrasound by amphibians for the first time in South America. It also describes the first documented case of the use of ultrasound ...