Staying up late nights might feel productive, but it could be affecting your mental health in ways you don't realize.

(CNN)-- If you have a hard time crawling out of bed in the morning, it could be that your body is biologically programmed to start the day later. Experts say a spectrum of natural sleeping and ...

Owls have large eyes that are specially adapted to low-light conditions, allowing them to hunt effectively at night. These eyes are tubular rather than spherical, which enhances their ability to ...

Night owls, for instance, generally feel tired later ... Turns out, it’s largely triggered by light signals that strike your eye. So, when you first wake up, get outside and soak up some morning ...

If you hear a screech owl in your neighborhood at night (hear their sounds here ... red tips on their flight feathers. Add a black eye-mask, taupe-colored plumage, head crest and sleek-looking ...

There are some animals that only come out at night and they are called nocturnal animals. Woo. Woo! Who do you think these eyes belong to? Owls. Owls have big eyes to help them see in the dark.