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How do sharks keep everything in balance?
they keep moving
Do Sharks have to keep moving to avoid sinking?
yes or they can drown and die if they sink
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.
Do fish have to swim to breath?
No only sharks have to keep moving to force water through their gills.
Why must sharks always be swimming?
Sharks cannot stop moving because they always need oxygen flowing through their gills. Unlike other fish, who are able to "pulse" their gills in order to keep water and oxygen flowing through their gills, sharks are unable to do so and therefore have to keep swimming.
Why are cartilaginous fish such as sharks constantly moving?
If sharks did not move then they would die, when they move its like they are breathing, I know we dont do it but they are sharks ya know xD
What permits sharks form moving?
Land.
Why do most sharks have to swim at all times before they sink?
This is actually not true at all times or for all sharks. It is true that most sharks need moving water in order to breathe, but there are underwater currents where sharks can stop, because the water is moving around them.
Do sharks need to move constantly?
No. This is a common miscomception. Fish need to move to filter water through they're lungs to get Oxygen. But Sharks gills contract and expand to draw water in and can remain motionless, and healthy like Nurse Sharks.
What do sharks do that most animals don't?
Suffocate if they stop moving
Do sharks move when resting?
Sharks die when they don't move, so even though they rest, they don't stop moving!
What unusual method of moving about can be used by Epaulette sharks?
Walking on the seabed
