Ultrasonic Frogs Raise the Pitch
Some frogs that live in noisy streams communicate by using ultrasonic calls.
By Emily Sohn, 00:00 AM March 15, 2006
Cartoon superheroes have included bats, spiders, and turtles. It may be time to add frogs to the list of animals that have special powers.
Scientists have found signs of ultrasonic communication in a frog species that lives in China. Ultrasonic signals have such a high pitch that people can't hear them. This type of frog is the first amphibian ever discovered to have such sensitive ears.
A concave-eared torrent frog.
|Courtesy of Albert Feng.|
Concave-eared torrent frogs are small and brown. They ...
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