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According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.
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The horizontal fraction bar was introduced by the Arabs.