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Re: The Return of The Thagomizer... :-)
OOPS, I actually sent the first version of this message to Dave instead of
Is there a way to predict UV radiation levels in Mesozoic times? Perhaps the
Mesozoic was so hot because Earth received more solar radiation, which would
have led to the absorbing of more thermal energy AND UV rays.
From: David Marjanovic <firstname.lastname@example.org>
To: DML <email@example.com>
Subject: Re: The Return of The Thagomizer... :-)
Date: Sat, 07 Jul 2007 12:06:16 +0200
BTW, if (in an alternate timeline) humans did indeed evolve with
dinosaurs, would they really be as white as Raquel Welch, Fred Flintstone,
or the class in that cartoon? I would expect people living in a climate
like that enjoyed by most large dinosaurs to be black- or brown-skinned.
That depends on the UV irradiation (in other words the latitude, roughly),
not on the heat.
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