A male spring peeper calls out for a mate. Screengrab from video by Oklahoma Department of Wildlife. You might not spot a spring peeper in the wild but you’d have no problem hearing one. The tiny tree ...

Early spring nights can be loud with the sound of male spring peepers (Pseudacris crucifer crucifer) vocalizing by using their throat sacks to attract mates. The small brown, tan or greenish frog has ...

During a recent lecture on evolution, I had to explain the differences between three different processes known as geographic, temporal and behavioral isolation. Geographic isolation is the easiest of ...

Every spring, visitors are serenaded by a chorus of frogs emanating from Stillman’s cattail marsh. And almost every person comments, “Listen to those spring peepers.” Guess what? Almost everyone who ...

With a body the color of dead leaves and a black “mask” extending behind the eyes, the wood frog is unmistakable if you can actually find one. Credit: PHOTO BY BILL DANIELSON During a recent lecture ...