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The average heart rate in fish varies widely depending on the species and environmental factors, typically ranging from 20 to 300 beats per minute. Generally, smaller fish tend to have higher heart rates, while larger fish have slower rates. Factors such as water temperature, activity level, and stress can also influence a fish's heart rate. Cold-blooded by nature, fish heart rates usually increase in warmer water.

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AnswerBot

3w ago

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