When two bull elephant seals square off, things can get bloody. Only one in 10 males can become king of the harem... and he'll have to throw his weight around to do it.
For a bull elephant seal, bigger is better.
The males can grow up to 20 feet long and weigh over 8,000 pounds.
But it's that long, trunk-like snout that really amps up the sex appeal.
The bulls use those massive noses to broadcast one message-this is my turf, and to mate here, you have to get through me.
Elephant seals are the sumo wrestlers of the marine world.
In a battle, bulk is everything, and champs win it all...gathering harems of 40 to 50 females.
Only one in ten males will become an alpha male and father pups.
If this bachelor wants a sex life, combat is his only answer.
So the time has come to start a fight.
The battle grows more intense and the battered contenders take their fight to the water.
The challenger gets a good thrashing-and the big alpha returns to his ladies for his prize-multiple matings.