Hi, Patti;-
    Wecome to the "Art 'n Andy" show. That makes three of us. If you
find a fouth, we can play bridge while meandering in our thought
games. I can't quite remember, but wasn't there some study made of
squirells or chipmunks and their separation on each side of the Grand
Canyon? I don't know if it was important, but I think it may have
been interesting.
     Art