I'm a NAUI Divemaster, and used to co-own a dive store in Valdosta GA. Here's a little insight into basic shark mentality.

Sharks are opportunity predators, and like most predators they'd rather not have to work hard for their meal. In their world anything swimming erratically, anything splashing on the surface, or anything that doesn't belong are all signs of an animal in distress - and an easy meal. This is why swimmers and surfers are attacked by sharks much more than divers - they look like hurt seals splashing on the surface.

By contrast a diver (skin or scuba) is in control, at the shark's level, about the same size (normally - Big Blue is an exception ?), and is moving in a similar pattern as the other animals around - namely the dolphins, remoras, and cleaner fish.

Basically, these "weird dolphins" in her eyes aren't worth the time to hunt - something easier will come along.

And in a weird way, she likes the attention. ?

I think they’re now saying that is may not be Deep Blue afterall. But doesn’t matter. Still amazing. I’m a huge shark aficionado.

I am sincerely totally chickenshit! There is no way I would even swim in the ocean, much less with a 20 foot Great White. I don't even like swimming in lakes. This is incredible!

I thought she looked more like 25. 3 tons of her.

But then this is one of the greatest scenes in film history, engraved in the back of my mind for life...