A young gorilla sleeps with its mother inside their enclosure at the Zooparc de Beauval in Saint-Aignan, central France, on April 14, 2017. | Guillaume Souvant/AFP/Getty Images

How Human Sleep Differs From Other Primates, and What It Means for Our Health

An investigation of primate sleep patterns finds that humans are apparent outliers. We sleep shorter, yet often deeper, than our closest animal relatives.