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Your heart beats over 36 million times a year.

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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.

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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

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A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Mechanisms that convey positional information during embryonic development. Mechanisms that convey positional information during embryonic development.
Charles Darwin may be dead and gone but a recent write-in campaign has pitted him against Republican Charles Darwin may be dead and gone but a recent write-in campaign has pitted him against Republican
The offspring of the microchip—from computers to cell phones—offer access to vast information ... The offspring of the microchip—from computers to cell phones—offer access to vast information ...
Cutaway Drawing of Tholos, The So-called Treasury of Atreus Cutaway Drawing of Tholos, The So-called Treasury of Atreus
Different forms of a gene are called alleles Different forms of a gene are called alleles
Video: Hormonal feedback loop components & Glucagon (glycogenolysis and gluconeogenesis)

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