Humans and chimpanzees have much in common, biologically
speaking, and that may now include certain communities -- or
ecosystems -- of gut bacteria, a new study finds. Gut bacteria
play a crucial role in collecting nutrients from food, helping
the immune system and protecting people against disease-causing
viruses, bacteria and other microorganisms. Yale University
researchers have been investigating why gut bacteria organize
themselves into three distinct communities called enterotypes.
Each person seems to have one of the three enterotypes in their
gut, but some scientists have suggested that enterotypes may
merely be the product of different types of diets. Click
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