If you could remove all of your skin, it would weigh up to 5 pounds.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.
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Everyone has one nostril that is larger than the other.
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The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.
Persian leopard kept in Hannover's Adventure Zoo, Germany
Persian silk tree
Time Line of Human History From Upper Paleolithic Period to the Present
Ottoman Empire and the Arab World, 1914
Embryonic Period
Estimated number of new HIV infections per year over time period in Canada