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

What’s the oddest rain you’ve ever experienced? It probably wasn’t fish, frogs or mysterious goo — all examples of the ...

Many scientists believe the red-eyed tree frog developed its vivid scarlet peepers to shock predators into at least briefly questioning their meal choice. These iconic rain-forest amphibians sleep ...