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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.