Here are 10 animals known for their minimal or nonexistent sleep habits, showcasing the incredible adaptability of nature:
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Alpine Swifts: These birds can remain airborne for months, taking brief moments of sleep mid-flight
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Ants: Certain ant species have very short sleep cycles; queens take short naps, while workers may stay awake for extended periods
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Bullfrogs: Known for going months without sleep, these frogs have remarkable endurance
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Deer: Deer can reduce their sleep during migrations or when predators are near
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Dolphins: Dolphins practice unihemispheric slow-wave sleep, where one half of their brain rests while the other remains awake.
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Elephants: With just about two hours of sleep daily, elephants are often active, maintaining social bonds and traveling in groups
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Giraffes: Requiring only a few minutes to two hours of sleep each day, giraffes stay vigilant, their height helping them keep watch for predators
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Horses: Horses can sleep standing up and need only two hours of REM sleep daily, allowing them to respond quickly to danger
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Sharks: Some shark species must keep moving to breathe, so they don't sleep traditionally but experience reduced activity while staying partially awake
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Walruses: Walruses can swim continuously for up to 84 hours without sleep, then make up for it by sleeping for as long as 19 hours on land