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Do sea fish and sea mammals drink sea water and if they do how do they eliminate Sodium?

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Fresh water fish do not drink water, they absorbed it through their skin, like osmosis. Sea water fish do drink water, and excrete the salt through their gills.

The salmon, which lives in both in environments, gets its water like a fresh water fish when in fresh water and like a sea water fish when in the sea.
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Is a sea turtle a mammal fish or amphibian?

A sea turtle is a reptile.

Can you take sea water and drink it?

On average, seawater in the world's oceans has a salinity of about 3.5%. This means that every kilogram, or every litre, of seawater has approximately 35 grams (1.2 oz) of dis

Why can't you drink sea water?

Sea water contains large amount of salts. Drinking of sea water causes polyurea for excretion of extra salts from body. This will increase your thirst.

Can sea water be purified to drink?

  Yes, it can be done through a process called desalination. However it's quite expensive to do on a large scale.

Why can't we drink sea water?

Sea has lots of salts and many of them are even poisnous for  human body. Sea water can be drunk after purifying it like many  states including but not limited to Gulf state