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Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

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On average, the stomach produces 2 L of hydrochloric acid per day.

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The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

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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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Video: X chromosome inactivation in calico cats

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