In California's high mountain lakes, male frogs are in a race against time with only three weeks to find a mate before the water refreezes. Their croak speed is a precise thermometer that tells ...

At a Laingsburg nature center, spring nights come alive with frog croaks, bird calls and cricket chirps. A group of hikers ...

For the fourth time, hundreds of endangered frogs were released into the Columbia National Wildlife Refuge with the intent to revitalize their population. The roughly 500 northern leopard frogs were ...

Add Yahoo as a preferred source to see more of our stories on Google. In California's high mountain lakes, male frogs are in a race against time with only three weeks to find a mate before the water ...