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People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

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Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

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

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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

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Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Fire ant Fire ant
In the heat of the Battle of Lake Erie, Perry had to abandon his flagship, the Lawrence, which had b In the heat of the Battle of Lake Erie, Perry had to abandon his flagship, the Lawrence, which had b
If a fire were to occur, follow the evacuation plan. If a fire were to occur, follow the evacuation plan.
X-Ray Procedures Requiring Special Preparations X-Ray Procedures Requiring Special Preparations
Insulin Preparations Insulin Preparations
The Nature of Environmental Science: A fireman battles with a forest fire The Nature of Environmental Science: A fireman battles with a forest fire
Video: Multiple Sclerosis Animation

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