"Within one linear centimeter of your lower colon there lives and works more bacteria (about 100 billion) than all humans who have ever been born. Yet many people continue to assert that it is we who are in charge of the world." Neil deGrasse Tyson, astrophysicist and author (b. 5 Oct 1958)
"The Dust In Your House: The Unseen Critters That Share Your Space"
http://paxonbothhouses.blogspot.com/2015/09/the-dust-in-your-house-unseen-critters.html
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