Sleeping Like a Baby

S1, E4: Sleeping Like a Baby

Available on Smithsonian Channel, Prime Video, Hulu
Owls and foxes are born with undeveloped brains. And to grow, they need a special kind of deep sleep known as REM, or rapid eye movement--a state marked by brain regeneration, memory development, and a lot of movement. Take an intriguing look into the role of sleep in helping different species develop.