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 ...
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 ...
Male frogs often force females to mate with them, but in one species, a croak from the female seems to persuade males to leave her alone. The sound may be an “honest” signal that she isn’t fertile and ...
Every other Friday, the Outside/In team here at NHPR answers listener questions about the natural world. Today's question comes from Andy, calling from Dover, New Hampshire. Alejandro Vélez: That is a ...
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