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Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

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Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

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

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Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

This image shows growing blood vessels in the retina of a mouse This image shows growing blood vessels in the retina of a mouse
Interior nodes represent common ancestors Interior nodes represent common ancestors
Strawberry hemangioma, a birthmark caused by a collection of blood vessels in the skin. Strawberry hemangioma, a birthmark caused by a collection of blood vessels in the skin.
Coronary circulation. (A) Coronary vessels portraying the complexity and extent of the coronary circ Coronary circulation. (A) Coronary vessels portraying the complexity and extent of the coronary circ
Location of the main structures of the vessels Location of the main structures of the vessels
Lymphatic System: Facts, Functions & Diseases Lymphatic System: Facts, Functions & Diseases
Video: Chemical Changes

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