Video of elephant seals

I have finally been able to post a video that I wasn't able to post the other day.  This is of the elephant seals at a beach just north of San Simeon. 

First one sees a male hassling a female.  The females are still nursing their new pups, so don't particularly appreciate the attention at this point.

Next, a small male chases away a smaller male.

Finally, a male lifts it's head and vocalizes.  It is difficult to hear him because of the noise made by the wind, but listen carefully for a "knock" sound.  It comes from deep in his throat.

http://www.youtube.com/watch?v=Z1QqsNeK5xA

I don't mean to speak badly of them, but don't they look like slugs?