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Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

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Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

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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.

Red squirrel Front view, Gatineau Park, Quebec Red squirrel Front view, Gatineau Park, Quebec
Muscles of the right hand back view Muscles of the right hand back view
Microscopic View of Coleous Shoot Microscopic View of Coleous Shoot
Skull Anterior View Skull Anterior View
Inferior view of distal ends of radius and ulna Inferior view of distal ends of radius and ulna
Superior & inferior view of the tarsus (ankle) Superior & inferior view of the tarsus (ankle)
Video: Darwin's Observation (Fossils, Galapagos Islands & Africa ) and Natural Selection (Adaptive Traits)

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