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Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

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In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

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There are more nerve cells in one human brain than there are stars in the Milky Way.

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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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You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

The frequency of competition according to the number of species involved. The frequency of competition according to the number of species involved.
Modern Human Fossil Sites in the Old World Modern Human Fossil Sites in the Old World
Fossil remains of anatomically modern humans from the Czech Republic and from China (center crania) Fossil remains of anatomically modern humans from the Czech Republic and from China (center crania)
Human urinary system Human urinary system
Cast of a Fossil Dunkleosteus, with a human to illustrate scale Cast of a Fossil Dunkleosteus, with a human to illustrate scale
Manhattan plots resulting from a genome-wide association study of seven common human disease Manhattan plots resulting from a genome-wide association study of seven common human disease
Video: Nucleic acid digestion -small intestine

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