Subject: Orcas vs blue whale
Wed, 15 Sep 1999 19:10:03 EDT

They are both whales.  One is an odontocete, the other a mysticete or baleen 
whales.  Other than that, they are tremendously different.  I would suggest 
that you refer to any good book on whales, and there are many, for the broad 
look at both species.  It is too expansive to cover here in this format, and 
you will get better information in a couple of books on whales.