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How many times does a blue whale's heart beat per minute while diving?
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2
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10
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15
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20
That's Correct!
It's Wrong!
While diving, a blue whale's heart can beat as few as 2 times per minute. This extremely slow heart rate helps the whale conserve oxygen while submerged, allowing it to stay underwater for extended periods, sometimes up to 90 minutes. The blue whale's ability to regulate its heart rate during dives is an adaptation to its marine environment, where efficient oxygen use is critical for survival. As the largest animal on Earth, the blue whale's physiology is uniquely adapted to support its massive size and the demands of deep-sea diving. Studying these adaptations provides insight into the biology of marine mammals and the challenges they face in their oceanic habitats.
