Neoteny would be the most likely explanation for this.  Neoteny ( the retention of juvenile traits into adulthood) is what separates wolves from dogs, grass from grains, and modern humans from earlier Hominids.  Neoteny is the most common form of mutation found in both plants and animals.  Neotenized modern humans are said to have Down's Syndrome.

Ray Audette


________________________________
From: Elizabeth Beasley <[log in to unmask]>
To: [log in to unmask]
Sent: Sat, March 13, 2010 10:12:57 AM
Subject: Re: Paleo solutions to the common cold/flu?

Lynnet, okay, I need that recipe. Is it just chicken, broth, and vinegar and
ground pepper? Anything else?

Thanks! Liz

-----------------------

Chicken soup? paleo as can be, and more effective than OTC medicine.  Hot  
and sour
chicken soup is even more effective in my experience. ("Hot-and-sour" it
with vinegar and ground black pepper)

Lynnet