The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.
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Cyanide works by making the human body unable to use oxygen.
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Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.
Plant
Mars with water
Better land and water management and appropriate crop selection can help eliminate hunger
plant diagram
Flowering plant life cycle
Stabilizing selection eliminates extreme forms of a trait