Vaccines prevent between 2.5 and 4 million deaths every year.
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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
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Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
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Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.
A true albino squirrel. Note the pink eyes.
The giant grass hoppers are invading the city!
A typical bank statement.
Water consumption by type of use
A diagram showing one of Mendel’s crosses. True-breeding strains of pea plants with smooth and ...