1116-41801 - Dall's sheep (ovis dalli) rams hitting heads together during dominance display, butting heads, in autumn, denali national park, Alaska, united states of america
869-3602 - gelada baboon portrait male baboon displaying its teeth and gums with lip flipped back threat display Simien Mountains National Park Ethiopia Africa Animals
817-217646 - Southern Elephant Seal mirounga leonina bull, portrait full face with threat or challange display securing harem during mating season, Island of South Georgia, November 2003