Vaccines prevent between 2.5 and 4 million deaths every year.
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Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.
Ancient jawless fish
Mutualisms, such as those that occur among plants and pollinators, generally involve large numbers o
fish
FIsh
Composition of the supreme court, as of November 2020
Digital illustration of a fish that was believed to have become extinct during the Cretaceous Period