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Floral Pattern

10 Animals That Don’t Sleep Like You And Me

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Yellow Star

Bottlenose Dolphins: Dolphins sleep with only half of their brain at a time, while the other half remains awake

dolphin with head sticking out of water during daytime
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Bullfrogs: These amphibians can go for months without fully sleeping. They enter a state of rest where they are still alert and can react to threats

a frog that is sitting on some rocks
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Giraffes: Giraffes sleep for short periods (usually less than 5 minutes at a time) and often standing up. They achieve REM sleep (rapid eye movement) while standing

giraffes at the middle of the field
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Elephants: These large mammals sleep for around 2-4 hours a day, often in short, intermittent bouts. They also sleep standing up or leaning against a tree

two elephants walking on grass covered ground
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Sharks: Many shark species need to keep moving to pass water over their gills for oxygenation, so they cannot afford to fully sleep like humans

white shark under the sea
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Horses: Horses sleep standing up using a special mechanism in their legs called the "stay apparatus" that allows them to lock their knees and hips

two horses standing on mountain cliff by the sea
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Walruses: These marine mammals can sleep underwater, sometimes floating near the surface with their tusks hooked onto ice or rocks

sea lion on seashore during daytime
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Cows: Cows sleep for short periods throughout the day, totaling about 4 hours. They have the ability to sleep standing up or lying down

brown and white cattle standing at open field

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