In mammals, including you, specialized nerve cells called the suprachiasmatic nuclei (SCN) in the anterior hypothalamus regulate this rhythm. But here is where humanity gets weird. Unlike other ...

If you have day-hiked in the Smokies, you have undoubtedly been monitored, unawares, from a tree cavity. The unseen watcher? A winged super-predator resting with one eye open, waiting for dusk or ...

There may be bigger differences between early birds and night owls than the time they go to sleep. In a new study conducted by Dario Maestripieri of the University of Chicago, bedtime might also be ...