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From the November 2005 National Geographic; by Joel Achenbach


"...
Most of our cells aren't even human. If you had to count all the cells in your body, the vast majority--by a factor of ten--would be microbes.
...
Strangely enough, we don't know the identities of most of these microbes. We haven't figured out how to culture them. Instead, scientists 'grow' snippets of DNA, and have come to the conclusion that each one of us hosts somewhere between 500 and 1000 species of microbes,
...
What's clear is that the microbes are not a bunch of invaders. Rather, we co-evolved. A human body is like a complex ecosystem--a biosphere, almost.
...
[This is] a 'strategic alliance,' a symbiosis between mammals and microbes that goes back millions of years.

Date: 2005-10-20 04:06 pm (UTC)
From: [identity profile] turil.livejournal.com
Ooooh! That's really interesting. I knew there were other organisms that lived in us and we needed to be healthy, but I had no idea it was that many!

I hope you don't mind, but I posted this info on the Buddhists (http://www.livejournal.com/community/buddhists) community. We've had a lot of discussions about how humans relate to other species lately, and I thought it would be really good for generating some interesting ideas about it all.

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