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38: Ellen Weatherford, Can Fish Drown, and Real Pokemon

Let's Learn Everything!

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The Adaptation of Fish to Salinity

Some fish are adapted to live in different ranges of salinities. Bull sharks can swim up the Mississippi River and as far north as Illinois. They're able to do this by storing excess salt in their kidneys. salmon can go from out in the ocean into fresh water. That's only one way that they change a lot of things about their physiology.

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