For all the life and death drama that takes place in the animal kingdom, ferocity and aggression are relatively rare commodities in most wildlife photographs. The reason is simple: It's easier and a lot less dangerous to shoot an animal when it's napping or quietly grazing than when it's baring it's fangs. But passive posses make for static pictures.
Showing animals as they growl, snarl, tumble and claw have a bold and unmistakable authenticity. And you don't need to be in the wild, you can photograph simmilar scenes in most zoos as in this photograph of the wolf at Attiko Park, in Greece.
Technical details: Tokina 300mm, Fuji Sensia 100, hand held