All of “God’s creatures,” from the viruses and fungi to humans, have, through the forces of evolution, developed biological niches – the range they occupy across the earth and where we stand in the food
A story that has gone viral (again) claims that McDonald's touchscreen menus are covered in poop. Is it true?
The body's organs are fed by blood, which provides nutrients in exchange for waste products from cells. This free exchange of goods and services, however, is dangerous for the brain, primarily for two reasons.
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