Humming Bird

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A hummingbird’s wings beat between 50 and 200 flaps per second depending on the direction of flight, the purpose of their flight and the surrounding air conditions, and average hummingbird’s heart rate is more than 1,200 beats per minute. In comparison, a human’s average heart rate is only 60 to 100 beats per minute at rest. 

Source: https://www.thespruce.com/fun-facts-about-hummingbirds-387106 

A chicken lived without a head for 18 months.

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