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Fish In The Ocean Are In Danger Of Losing Their Sense Of Smell

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A recent study published in the journal Nature Climate Change has some advocates seriously concerned about the future of fish. Why? Their findings are grim: If atmospheric carbon dioxide levels continue rising over the next date, fish may start losing their ability to recognize different sorts of smells.

A natural question, of course, is: Why do fish need to smell? Perhaps surprisingly, a fish's ability to smell is hugely important to their survival.