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Discover the amazing world of the heart, how hard it works to pump blood around your body, and how ours compare to other animal's hearts.Key facts
- The human heart is the size of a grapefruit and produces enough energy within an hour to lift a baby elephant!
- The biggest heart in the world belongs to a whale.
- A hummingbird's heart is as small as a grain of rice.
- An octopus has three hearts, and an earthworm has five!
Transcript
Your heart is the size of a grapefruit
It NEVER gets tired!
The average human resting heart rate is between 60 and 100 beats per minute
In an hour it creates enough power to raise a baby elephant off the ground
The biggest heart in the world belongs to a whale.
It is as BIG ...
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