- There are over 10 trillion living cells in the human body.
- The little hole in some sinks that lets the water drain out instead of flowing is called a 'porcelator'.
- The spikes of a newborn hedgehog begin to appear within 24 hours.
- The life span of a house fly is between 10 to 25 days.
- A hummingbird's heart beats at over a 1,000 times a minute.
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