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Did you know?
The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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The FDA recognizes 118 routes of administration.
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Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.
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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
![The head of the jaguar is robust and the jaw extremely powerful. The size of jaguars tends to increa](https://biology-forums.com/gallery/47/medium_27638_22_04_12_9_37_44.jpeg)
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