Right Whale Beach Elephant Seal

Elephant Seal - 5D3, 70-200 IS II @ 170mm, f/5.6, 1/160s, ISO 400

Elephant Seal bulls look more peaceful than fur seals during breeding seasons but when two bulls get into a fight, things can get pretty bloody.  Still, they usually don't perceive humans as a threat to their territory so as long as you keep a reasonable distance, you're fine.