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Sharks will usually sleep in a moving ocean current so that water flows through their gills constantly. plus they never really sleep as like you or I do their bodies are always in motion If their bodies are not in motion, they will sink.

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16y ago

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Do sharks see while they sleep?

yes


Do sharks sleep, and if so, how do they do it?

Yes, sharks do sleep, but in a different way than humans. Sharks do not have eyelids, so they cannot close their eyes while sleeping. Instead, some sharks have to keep swimming to keep water flowing over their gills for oxygen. This is called "active rest." Other sharks can rest on the ocean floor or in a cave while still moving water over their gills to breathe.


How do dolphins and sharks sleep?

They just kinda rest for a while


Do sharks sleep?

Yes, sharks do sleep but in a different way than most animals. They enter a state of restful inactivity where their brain activity and alertness levels are reduced, allowing them to rest and conserve energy. Some species of sharks have to keep swimming even while sleeping in order to pass water over their gills for oxygen.


How do tiger tiger sharks get oxygen?

Their gills pick up oxygen while they swim


When do sharks sleep?

Some asleep on the seabed, while others continue to swim while asleep.


Where do shark sleep?

Most sharks do not sleep.If they stop swimming....they will die.They need water running through their gills to get oxygen.However.....some sharks, like the Nurse Shark, can stop swimming for a while & have a snooze.


How do pterodactyls obtain oxygen?

Pterodactyls do not obtain oxygen at this time because they are extinct. While they existed, they probably obtained oxygen in the same way that birds today obtain it through the use of lungs.


How do frogs obtain oxygen underwater?

Frogs obtain oxygen underwater through their skin. They have specialized skin that allows them to absorb oxygen directly from the water, which helps them breathe while submerged.


How do sharks sleep?

Its true.Sharks swim while they sleep.The reason they do that is because in order to breathe they need water running through their gills all the time.So when they sleep they move to keep breathing.If they stop moving THEY CANT BREATHE AND WILL DIE!!


What is the only animal that never sleeps?

Some people think that sharks never sleep because they need to keep moving in order to breathe. However, some sharks need to keep moving to do this, while others don't. Some sharks have spiracles, a small opening behind their eyes, that force water across the shark's gills so the shark can rest. Other sharks do need to swim constantly to keep water moving over their gills and their bodies, but sharks can swim without using all of their brains. These sharks have active periods, and restful periods, rather than undergoing deep sleep like we do. They seem to be sleep-swimming, with parts of their brain resting.


Why can sharks stay under water longer than whales?

Sharks have gills to extract oxygen whereas whales , being mammals , have lungs from which they get their oxygen . Whales need to surface in order to access oxygen while a shark is not burdened with this necessity thus being able to stay underwater indefinitely .