Scientists have recorded the heart rate of the blue whale for the first time, and revealed surprising operating extremes of the heart that may limit the size of the largest animal on the Earth. The data suggests that a blue whale's heart is already working at its limit, which may explain why blue whales have never evolved to be bigger, the researchers said.
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Heartbeat of blue whale recorded for first time
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Publish Date:
November 25, 2019
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