Postby geo2maz » Tue Aug 28, 2012 9:14
That's great, all-natural pollutant detection! I seem to remember Bear Grylls (Man vs. Wild) mentioning that if a pond/lake/stream has crayfish (i think) in it, then the water is somewhat safer to drink and not completely bad.
I was swimming in Sylvan Lake, Custer SD over the weekend and it was crawling with life, little fish everywhere, big fish everywhere, dragonfly's + larvae, algae and so on... must be pretty clean water.
I'm a big E.O. Wilson fan, if you ever want a good book check out "The Superorganism: The Beauty, Elegance, and Strangeness of Insect Societies" I read that last year and it was really interesting, more related to ant societies (his specialty).
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