You know the feeling. It’s getting close to bedtime, you get sleepy, and you start yawning automatically. You may even find ...

Many scientists believe the red-eyed tree frog developed its vivid ... These iconic rain-forest amphibians sleep by day stuck to leaf-bottoms with their eyes closed and body markings covered.

There's just something about an Angel Frog's little butt. Discover more about the frog and why its butt has a devoted ...

The sound comes from Anilany karsticola, a newly discovered species of microhylid frog, barely longer than ... “This species was very active after rain in late afternoon and in the evening.