By Mark Lange
There are thousands of types of bacteria representing the simplest and oldest form of life on earth. These ubiquitous creatures dwell within us and around us in astronomical numbers and include both dangerous and helpful bacteria. The average person carries around a quarter pound (100 grams) of various types of bacteria in their gut, skin and mouth. They settle into the moist, nutrient-rich, protected folds of our skin and multiply by dividing, leading us to the old joke, "Why do bacteria fail at math tests? Answer - Because they think multiplication is the same as division." Read more
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