News Animals

Wild elephants clock shortest shut-eye recorded for mammals

Average snooze of two hours per night deepens mystery of sleep’s role

wild elephants

SLEEP DIARIES  The first study of electronically monitored sleep in two wild elephants (one shown above) finds a record-breaking low average for mammals.

P. Manger

By Susan Milius

- More than 2 years ago

Fitbit-style tracking of two wild African elephants suggests their species could break sleep records for mammals.