Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.
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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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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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There are more bacteria in your mouth than there are people in the world.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
lower surface of Arabidopsis thaliana leaf, showing a trichome
Scaling the Earth down to the size of a basketball, the Moon is roughly the size of a tennis ball. T