Denali (Athabaskan for "the great one")is the original name of Mount McKinley in Alaska, and the highest peak in North America. Also the name of a really cute, blue-eyed and practically all-white Border Collie who happens to be deaf.
Oreo and Denali are great friends! Maybe Denali didn't want to be white anymore? or myabe the puddle smelled wonderful!
Aww, he wants to look like sister Dally! ;-)