Animals sleep in shocking ways to avoid being eaten or drowning: Are humans missing out?
Sea otters hold hands to avoid drifting away while sleeping. Sperm whales take short, vertical power naps to conserve energy. Dolphins and ducks sleep with one eye open, using unihemispheric sleep. Flamingos stand on one leg, locking their joints to save muscle. Frigatebirds take brief micro-naps while gliding during long migrations.
Sea otters hold hands to avoid drifting away while sleeping. Sperm whales take short, vertical power naps to conserve energy. Dolphins and ducks sleep with one eye open, using unihemispheric sleep. Flamingos stand on one leg, locking their joints to save muscle. Frigatebirds take brief micro-naps while gliding during long migrations.
