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Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

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Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

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Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

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Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Competition among Paramecium species. Competition among Paramecium species.
Invasive species provide an example of predator pressure. Invasive species provide an example of predator pressure.
Two species of diatoms showing clearly distinct morphologies. Two species of diatoms showing clearly distinct morphologies.
Zebras are several species of African equids (horse family) united by their distinctive black and wh Zebras are several species of African equids (horse family) united by their distinctive black and wh
Some species extinction Some species extinction
Australia's spiny anteater, one of only three modern species of monotremes Australia's spiny anteater, one of only three modern species of monotremes
Video: Segmentation and migrating motility complexes & Gastroileal reflex

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