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Re: Tiktaalik, Great Danes and speciation

To: keesey@gmail.com
Subject: Re: Tiktaalik, Great Danes and speciation
From: jrc <jrccea@bellsouth.net>
Date: Tue, 11 Apr 2006 12:44:04 -0500
Cc: dinosaur@usc.edu
References: <7984384D860C3C4CA40F085F70A180C398B5BF@NL-EXVS-01A.bnl.capgemini.com>
Reply-to: jrccea@bellsouth.net
Sender: owner-dinosaur@usc.edu

If I remember correctly, some of the largest species are also reproductively isolated from one another, because they achieve giantism by mutually exclusive genetic changes. Howver, that is memory only -- don't hold me to it.

----- Original Message ----- From: "T. Michael Keesey" <keesey@gmail.com> To: <dinosaur@usc.edu> Sent: Tuesday, April 11, 2006 11:54 AM Subject: Re: Tiktaalik, Great Danes and speciation

Still impressive, but I think it's safe to say the smallest and largest _Canis lupus familiaris_ are reproductively isolated from each other. (You could probably artificially inseminate a Great Dane bitch with Chihuahua sperm, but that's cheating.)

References:
- RE: Tiktaalik, Great Danes and speciation
  - From: "Botterweg, Rrp" <ronald.botterweg@capgemini.com>

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