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 ...

A tiny peeper, aka pseudacris crucifer, makes a huge noise. This episode was first heard in March 2018 and was produced by Andrew Parrella. It’s an unmistakable sound; one that elicits memories, ...

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 ...

With the arising warmth on the mainland, season-harbingering spring peepers are already sounding off. Their piercing mating calls resonating even during near-freezing nights. Peepers are among the ...

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 ...

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 ...