imo, the guy is a tad off to go swim with a great white, but it was a really neat video to watch. I was wondering about the scars on her sides, but the article confirmed what I was figuring.
personally, I get a little nervous swimming in the Indian and Banana Rivers down in FL, since there are bull sharks in there.
I think those are mating scars. She is very deep in the belly and in very warm water to boot, I would not be suprised if she were getting ready to pup.