A mountain yellow-legged frog returns to the wild in the Desolation Wilderness, south of Lake Tahoe in California. Josh Cassidy/KQED hide caption

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Josh Cassidy/KQED

In The Battle To Save Frogs, Scientists Fight Fungus With Fungus

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Scientists in California are turning to big data to help save the red-legged frog, which is listed as threatened under the Endangered Species Act. Gary Kittleson hide caption

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Gary Kittleson

Using Algorithms To Catch The Sounds Of Endangered Frogs

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Male and female tungara frogs. Among these frogs, the guy with the best call usually wins the gal — except when you throw a third-choice loser into the mix. Alexander T. Baugh/Encyclopedia of Life hide caption

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Alexander T. Baugh/Encyclopedia of Life

Froggy Went A-Courtin', But Lady Frogs Chose Second-Best Guy Instead

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The newly described L. larvaepartus (male, left, and female) from Indonesia's island of Sulawesi. Odd, sure, but at least they don't use their stomachs as breeding chambers, as some other frogs do. Jim McGuire/UC Berkeley hide caption

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Jim McGuire/UC Berkeley

These Froggies Went A Courtin' And Gave Birth To Live Tadpoles

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Populations of frogs and other amphibians are declining at an average rate of 3.7 percent each year, according to a new U.S. Geological Survey study. Karen Bleier/AFP/Getty Images hide caption

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Karen Bleier/AFP/Getty Images

For centuries, Russians believed putting a brown frog in their milk would keep it fresh. Now scientists are finding chemicals in the frog's slimy goo that inhibit the growth of bacteria and fungi. Stefan Arendt/Corbis hide caption

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Stefan Arendt/Corbis