Owls can make many sounds depending on the situation ... you might hear it before you ever see it. At night, great horned ...

(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 ...

They say the early bird catches the worm — probably because night owls are too depressed to do it. Night owls may be smarter than early birds, but research suggests they are also more likely to ...