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 Brazil noticed something strange.
Small leaf litter frogs were arching their backs, throwing back their heads and opening their mouths wide.
They looked like they were screaming but the scientists could hear nothing.
When they recorded the frogs using high-frequency audio recorders, the scientists captured the first documented case of “defensive ultrasound” being used by amphibians.
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Makes me think of the screaming cowboy song except frog
This is the best summary I could come up with:
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 Brazil noticed something strange.
The scream is a response to predators, according to researchers from Brazil’s State University of Campinas.
Humans cannot hear frequencies higher than 20 kHz, which are classed as ultrasound.
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Bats, whales, rhinos, dogs, pigeons, cuttlefish… all sorts of animals use infrasonic and ultrasonic frequencies to communicate, and humans can hear none of it.
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