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Did you know?
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
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There are more bacteria in your mouth than there are people in the world.
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About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
![Reaching out for food on a garden bird feeder. Squirrels can rotate their hind feet, allowing them t](https://biology-forums.com/gallery/47/medium_27692_23_04_12_3_56_52.jpeg)
![Selective breeding of maze-bright and maze-dull strains of rats by Tryon (1934). (Data from Cooper, ...](https://biology-forums.com/gallery/30/medium_548020_01_06_17_6_32_34_301921514.jpeg)