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Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

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

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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

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Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

a Hyenas and other scavengers may have competed with early hominins for access to carcasses. a Hyenas and other scavengers may have competed with early hominins for access to carcasses.
The early stages of the human life cycle. The early stages of the human life cycle.
Early Pottery From Japan's Jomon Culture Early Pottery From Japan's Jomon Culture
The striking improvements in motor development in the early months The striking improvements in motor development in the early months
Early growth of corn (Zea mays), a typical monocot. Early growth of corn (Zea mays), a typical monocot.
Early growth of the common bean (Phaseolus vulgaris), a typical eudicot. Early growth of the common bean (Phaseolus vulgaris), a typical eudicot.
Video: Deglutition

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