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From: "Mary AsaWoman" <>
Subject: Re: [DNA] Were the I1a people Brown Eyed? Were they mostly blonde?
Date: Sat, 11 Sep 2004 20:15:03 -0700
References: <45.15c1216c.2e74c7c5@aol.com>


Speaking of moths changing color to blend in with the environment, someone
noted that some of the pigeons in Los Angeles had become a sort of dirty
brownish-gray color due to the smog. I don't know the source on this, but I
noticed that the downtown pigeons there matched that description.

Mary+cats

----- Original Message -----
From: <>
To: <>
Sent: Saturday, September 11, 2004 14:27 PM
Subject: Re: [DNA] Were the I1a people Brown Eyed? Were they mostly blonde?


> In a message dated 9/11/04 2:06:25 PM Pacific Daylight Time,
> writes:
>
> As you
> pointed out, Ken, it really doesn't seem like there's been enough time for
> nature to select the blue eyed people in Nordic country in just 8000
years.
>
> That is plenty of time, about 400 generations, especially if the genetic
> propensity for light eye color was already in the population that moved
there.
> Remember those English moths that were white in pre industrial England but
became
> gray once the pollution from burning coal stained the bark on trees.
Nothing
> changed genetically but the white moths were eaten by birds and the gray
ones
> survived to maturity.
>
> I know people in northern climes needed lighter skin color to absorb
vitamin
> D. Do blue eyed people have an advantage in snow? An important
consideration
> is the people who followed the ice north were probably already adapted for
> living near cold regions. When the glaciers started melting animals near
the base
> of the glacier moved into the newly opened area.
>
> Grant
>
>
> ==============================
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