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In 1864, the first barbiturate (barbituric acid) was synthesized.
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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
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About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

![People have seen patterns in the stars since ancient times.[5] This 1690 depiction of the constellat](https://biology-forums.com/gallery/47/medium_12359_26_01_13_3_44_40.png)