Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
Limb development in humans.
False killer whales
Red-Green Color Blindness Is a Sex-Linked Trait in Humans
True-color image of layers of haze in Titan's atmosphere.
Humans take in energy by eating food
The human X chromosome (left) and the Y chromosome (right). This false-color scanning electron micro