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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

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Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

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The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

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Asthma cases in Americans are about 75% higher today than they were in 1980.

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When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

A hypothetical hybrid zone. A hypothetical hybrid zone.
Barnacle mortality in the upper intertidal zone Barnacle mortality in the upper intertidal zone
The San Andreas Fault Zone The San Andreas Fault Zone
Examples of Generic Drugs Contained in Brand-Name Products Examples of Generic Drugs Contained in Brand-Name Products
Dissolved oxygen at The Gulf of Mexico’s “Dead Zone” Dissolved oxygen at The Gulf of Mexico’s “Dead Zone”
Remains of an abscission zone between a leaf petiole and twig of horse chestnut (Aesculus hippocasta Remains of an abscission zone between a leaf petiole and twig of horse chestnut (Aesculus hippocasta
Video: Lipid absorption - end products & transport mechanism

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