Why does an increase in temperatures make fish more aggressive and bold?



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    According to Australian researchers, part of the reason is simply that higher temperatures speed up a fish’s metabolism. For coldblooded creatures, metabolism and therefore the amount of food they must consume increases with the ambient temperature, so they become more active. This leads to an increase in aggression because more fish are actively seeking food at once, leading to competition. Therefore, the warmer the ocean temperatures, the more fish will injure and kill one another.

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