Nearly 20 years ago, the last known Cascades frog disappeared from Lassen Volcanic National Park. Now researchers are ...

The jewel-like lakes of the High Sierra in Yosemite National Park are awe-inspiring sights. But for more than a hundred years they've also been biologically disrupted, stocked each year with ...

Almost 300 endangered northern leopard frogs that were raised at the Northwest Trek Wildlife Park were released into the wild at the end of August. They were released back into the wild at the ...

When frogs start disappearing from a place that they've been in for decades, it can be a warning sign for the whole ecosystem. In Indiana, nature lovers and scientists are raising the red flag for the ...

Frogs leaped into the air and swam for cover as Paul Johnson strolled toward a stream crossing, a Jeep crawling slowly behind him. As the SUV climbed into the Griswold Hills from the San Joaquin ...

Quick Take Boulenger’s backpack frog carries eggs in a dorsal pouch on its back instead of dropping them into water. This ...

The jewel-like lakes of the High Sierra in Yosemite National Park are awe-inspiring sights. But for more than a hundred years they've also been biologically disrupted, stocked each year with ...

OTHELLO, Wash. — Nearly 300 endangered northern leopard frogs returned to the wild at the Columbia National Wildlife Refuge in Grant County at the end of August. The Washington Department of Fish and ...

Crawfish frog numbers are on decline due to habitat loss. But scientists in Indiana are working to return species to a historic site. When frogs start disappearing from a place that they've been in ...