Re: Extinction (was Jurassic Intelligence)

[@lepomis.psych.upenn.edu:murphy!acmcr!vr (Vicki Rosenzweig)]

Karen, 

        I think you're comparing different levels here. While it's
true that birds have a wider range than mammals (because of the Arctic
tern and the Emperor penguin; I'm not counting south polar scientific
stations), no single species of bird has as wide a range as humans 
(the Arctic tern traverses a great deal of distance, but only to
get between its Arctic and Antarctic ranges) do.

Vicki Rosenzweig
vr%acmcr.uucp@murphy.com
New York, NY

  >> > > Even most of our domestic animals fail to match our range: I think
  >> > > only the dog and *maybe* the cat are found *everywhere* humans are.
  > 
  > 
  > Sorry for the delay in commenting I've been away and had alot of mail 
  > to wade through.  With regards to wide geographic distributions - 
  > what about BIRDS they are everywhere man is and more so, penguins in 
  > the South Pole etc and the Arctic Tern which traverses the whole globe 
  > annually.
  > 
  > 
  > Karen Richardson
  > A geologist in Exile!
  > Earth Sciences Library
  > University of Greenwich  
  > 
  > 
  > 
  >