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

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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.

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Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

H. erectus migrated out of Africa beginning about 1.8 million years ago and is first known from Geor H. erectus migrated out of Africa beginning about 1.8 million years ago and is first known from Geor
The Journey to Work, Philadelphia, 1850 The Journey to Work, Philadelphia, 1850
A mother dies, a father loses his leg—such calamities shattered poor urban families. Orphaned street A mother dies, a father loses his leg—such calamities shattered poor urban families. Orphaned street
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Beak size in finches during dry years increases because of strong selection Beak size in finches during dry years increases because of strong selection
Video: Types of antimicrobial substances (interferons & complement protein)

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