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Did you know?

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.

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.

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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Children make a fast adjustment to a new culture, although, as with these Hmong children in ... Children make a fast adjustment to a new culture, although, as with these Hmong children in ...
Percent of Mothers in the Workforce by Age of Children and Marital Status Percent of Mothers in the Workforce by Age of Children and Marital Status
Large families on U.S. farms used to be common. Children helped plant and harvest crops, take care ... Large families on U.S. farms used to be common. Children helped plant and harvest crops, take care ...
Twelve Votive Figures Twelve Votive Figures
School-age children enjoy classifying objects School-age children enjoy classifying objects
Extrinsic Motivation for Children Extrinsic Motivation for Children
Video: Sister chromatids of a metaphase chromosome animation

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