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The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.
There are 60,000 miles of blood vessels in every adult human.
Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

