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Did you know?
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
Did you know?
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.
Did you know?
More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
Did you know?
Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
Did you know?
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.