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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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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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In 1864, the first barbiturate (barbituric acid) was synthesized.
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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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Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.