Scientists suggest female frogs listen for changes in the male calls as a signal for when it's warm enough to mate.
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 ...
Not long after the snow melts a procession of peeps, trills, chuckles, chortles, snores and bellows begins in the mid-Michigan outdoors. These are not the sounds of humans recovering from serious ...
A Pacific tree frog (Pseudacris regilla) male calls at Washington state's Conboy Lake National Wildlife Refuge. Cyril Ruoso, Nature Picture Library When ice and snow begin to melt in California's high ...
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