Across the animal kingdom, sound is more than communication—it's a signal of survival and success. From birds and primates to ...

Female red-eyed tree frogs are more than twice as likely to select a mate if they can feel the vibrations of their call instead of only hearing it. These small, bright-green frogs (Agalychnis ...

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 ...

You can hear it in the morning and the evening. It comes from trees, behind bushes and under leaves. Ribbit. Ribbit. Ribbit. It’s spring — when a young frog’s fancy lightly turns to thoughts of love.

It’s spring — when a young frog’s fancy lightly turns to thoughts of love. OK, we can’t say for sure if frogs have the same emotions as humans, but the chorus of croaks coming from the swampier areas ...