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The average office desk has 400 times more bacteria on it than a toilet.

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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

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Illicit drug use costs the United States approximately $181 billion every year.

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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

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