Bacteria Rule Our Bodies, Our Planet

Image: The human gut is a virtual zoo, full of a wide variety of bacteria, a new study found. And scientists say that's a good thing. The first results of an international effort to catalog the millions of non-human genes inside people found about 170 different bacteria species thriving in the average person's digestive tract. (CBS/AP)

From CBS News:

Scientists Say the Human Gut is Full of Bacteria; Yes, That's a Good Thing.

(AP) The human gut is a virtual zoo, full of a wide variety of bacteria, a new study found. And scientists say that's a good thing.

The first results of an international effort to catalog the millions of non-human genes inside people found about 170 different bacteria species thriving in the average person's digestive tract. The study also found that people with inflammatory bowel disease had fewer distinct species inside the gut.

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