When It Comes To Sleep, Which Animal Are You?

 


Author: Sanjay Kumar Anand

Do you know that some animals sleep throughout the summer? This is called aestivation. The equivalent during the winter months is called hibernation. Some mollusks (eg: Spanish snail), fish species(eg: African lungfish), reptiles(eg: North American desert tortoise), and amphibians(eg: Ornate horned frog) spend hot or dry periods in a prolonged state of torpor or dormancy! They do so to avoid damage from high temperatures. They have to conserve energy, retain water in the body, and ration the use of stored energy during aestivation. Animals that aestivate go through almost the same physiological processes as those that hibernate.

Just a power nap!

Prey animals such as deer and sheep sleep for only 3 to 4 hours in the night! The giraffe sleeps only about 30 to 90 minutes a day! Many prey animals do so to keep an eye open for potential predators such as lions and tigers! However, this rule does not apply to all species.

The large hairy armadillo sleeps for 20 hours a day! Its followed by the brown bat(19 hours), the North American opossum(18 hours), the python(18 hours), and the owl monkey(17 hours).

The dolphin sleeps with half its brain and one of its eyes shut at a time to keep a watch on predators and other dolphins. After two hours or so, they shut the other eye and the other part of the brain, so both eyes and brain hemispheres get their due rest.

Birds such as swifts, songbirds, seabirds, and sandpipers also sleep in a similar way with half of their brains shut! This helps them during long flights and also to get prey. A new study proves that birds can sleep while flying.

Many creatures sleep in a group for protection from predators. Puppies, squirrels, bats, and meerkats sleep huddled together for extra protection.

By - Sanjay Anand






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