allcreatures:

An alpha male wolf sees off a love rival in in Omega Park, Canada. Photographer Mircea Costina captured the snarling pair battling for the affections of a female in a pack of wolves. His pictures show the stronger male baring his fangs as he pins the other wolf to the snow-covered ground. Mircea said: “After two minutes of fighting in the snow the intruder gave up and left.” Picture: Mircea Costina/Rex Features