All male frogs sing to attract mates, Maggie said, noting that each species has a distinctive song — the duck-like quack of the northern wood frog, the watery snore of a pickerel frog, and the ...

The frog season began late this spring. Like other vernal happenings, they were about one week behind the usual time. I did not hear any frogs calling until April 15, with the full chorus of the early ...

For several years, two close friends, now both deceased, would join me to go birding in early May along the coast. We would take Route 2. It was customary to stop at the French King Bridge, spanning ...

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 ...

Two related frog species differ by chromosome number, which deepened one species's calls and tells the females who's who. Steve Mirsky reports The eastern grey tree frog (sound) looks exactly like the ...

A Green frog (Rana clamitans) peers out from a pond in Arrowsic, Maine. There are nine species of frogs in the state and this common frog lives in Maine ponds, breeds in the summer, and hibernates ...

“All right, I’m coming!” I exclaimed, racing for the phone. Yes, I do have a cellphone, but haven’t cut the cord on our landline. I grabbed the receiver just before the fourth ring, when the answering ...

The eastern grey tree frog (sound) looks exactly like the closely related Cope’s grey tree frog (sound). The big difference between the two species is beneath the surface—the eastern has twice the ...