About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
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The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
Structure of Mitochondria
Viral structure
The structure of B-DNA from studies of molecular crystals