Re: smallest ANCIENT non-bird dinosaur - was what I was asking

[Andreas Johansson <andreasj@gmail.com>]

On Thu, May 8, 2008 at 8:15 PM, T. Michael Keesey <keesey@gmail.com> wrote:
> On Thu, May 8, 2008 at 11:07 AM, David Marjanovic
>
> <david.marjanovic@gmx.at> wrote:
>  >
>
>
> > ----- Original Message -----
>  > From: "Adam" <adam@crowlspace.com>
>  > To: "Dinosaur Mailing List" <dinosaur@usc.edu>
>  > Subject: Re: smallest ANCIENT non-bird dinosaur - was what I was asking
>  >
>  >> I've had interesting reactions when trying to
>  >> explain how 10% of all the people alive 1,000 years ago became ancestors
>  >> to everyone alive, and 90% didn't. That kind of shocks people.
>  >
>  > Is it even true? Or are you only talking about mitochondria or Y
>  > chromosomes?
>
>  I read in one book that if you go back 1600 (not 1000) years, everyone
>  from that time who has living descendants is ancestral to everyone
>  alive today. (I can't recall if there was no reference or if I was too
>  busy to look it up....)

I don't recall if a time depth is given, but the basic point is in
Dawkin's _The Ancestor's Tale_.

-- 
Andreas Johansson

Why can't you be a non-conformist just like everybody else?