Have you ever been a little groggy when you woke up? Maybe your family was leaving really early in the morning for vacation and your mom or dad woke you up to start the long drive. You probably were a ...

It’s “lights out” for bears in North America. They’re fat. They’re happy. Wake them when the weather gets better. Humans struggling for a respectable eight hours of sleep may look upon the genus Ursus ...

Why do some animals hibernate? -- Seinab Fahim, 10, Herndon What would you do if somebody turned off the heat from November through March -- and closed all the grocery stores in your neighborhood at ...