The world ‘wolf’ in English language stems from the aboriginal Old English wulf, which is thought to have been derived from the Proto-Germanic *wulfaz. The Latin lupus is a Sabine loanword. Both derive from the Proto-Indo-European root *wlqwos/*lukwos.
The following photos will give you a clear idea about the various wolves found in the world.
1 Seeing a Wolf And Snow is Very Touchy Phenomenon
2 There is A Relation Between A Moon And A Wolf – Remember ‘The Wolf’ Movie?
3 An Other Gray Wolf
4 A Wolf Dog
5 Beautiful wolf
6 Polar Wolves