5 Characteristics That All Fish Have in Common

Fish are diverse — each species has evolved to live successfully in its specific underwater environment, from streams and lakes to the vast expanse of the ocean. Despite the thousands of different species, all fish share common evolutionary adaptations that help them thrive in their watery domain.

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5 Characteristics That All Fish Have in Common 1. All Fish Are Cold-Blooded All fish are cold-blooded, which is also called ectothermic. This means, By Seven Seas Fisheries