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Did you know?

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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In 1864, the first barbiturate (barbituric acid) was synthesized.

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The average adult has about 21 square feet of skin.

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Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

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Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Tropical deciduous forest in Bandhavgarh National Park, India Tropical deciduous forest in Bandhavgarh National Park, India
A petrified log in Petrified Forest National Park. A petrified log in Petrified Forest National Park.
An exotic fox in Mornington Peninsula National Park with Mange. An exotic fox in Mornington Peninsula National Park with Mange.
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The “Big Four” world leaders meet at the Hotel Crillon in Paris, 1919. From left to right (front row The “Big Four” world leaders meet at the Hotel Crillon in Paris, 1919. From left to right (front row
Video: Automated external defibrillator (AED)

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