last photo is a leaner animal like a wild animal should be... 
That's because it's the only one that is a real wolf. Good eye! The problem with the rest is that they look similar to a wolf at a glance, then all the sudden they become WOLVES!!!! And are reported to anyone that will listen.
Not sure about any photoshopping. Certianly not by me, but could be possible by the person that took them. Not sure why everyone thinks the white animal has three legs, it looks to me like its standing with legs in a 'line'
