Dogs have over 400 different breeds within the same species, the most varied species on earth. They have also become guinea pigs in a new DNA study looking at mutant genes.The New York Times published a great article on this study focused on the whippet. To view this article visit http://www.nytimes.com/2007/06/12/science/12dog.html?ex=1182484800&en=011f6ec152fe2870&ei=5070

Lost Sports of the Winter Olympics: The fast and furry world of sled dog racing
Lost Sports of the Winter Olympics: The fast and furry world of sled dog racing