A fetus develops fingerprints at eighteen weeks!
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After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
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On average, there's 100 billion neurons in the human brain.
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The human brain has the capacity to store everything that you experience.
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Fidgeting can burn about 350 calories a day.
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When you get goosebumps and your hair stands, the hair helps to trap air, making you feel warmer by keeping in your body heat.
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By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
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Redheads require up to 20% more anesthesia to be knocked out.
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