unihemispheric sleeping

Brain Keeps Watch During Sleep
Tanya Lewis | Apr 21, 2016 | 3 min read
The first night people sleep in a new place, one of their brain hemispheres remains somewhat alert, a study shows.
Night Night, Flipper
The Scientist Staff | Feb 29, 2016 | 1 min read
Watch underwater footage of a dolphin sleeping in the wild.