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 ...
When ice and snow begin to melt in California's high-elevation waters, male frogs hop into action. Emerging from hibernation, they head to lakes and ponds scattered throughout the area and begin ...
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 ...
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