Daniel, I'm not one to believe everything I see on TV... especially Discovery. It's a pretty bold statement made by Ralph, and his colleagues from the Egypt cases have not come out to support his supposition. Of course, many times, the premise of scientific theories come from non-scientific ideas, so it's not really easy to dismiss his theory.
Like John's theory about self-defence; if the victims saw the sharks coming at them, they would use their hands or legs in a defensive posture. This would explain arms being bitten. Then again, Ralph's supposition that because the OWT was accustomed to being hand fed, it just went for the forearms like it was handling fish.
What makes these businesses and practices so unethical is that one person's day of fun or exciting photography can end up facilitating another person's death or dismemberment. It's one thing for a customer to sign a waiver and get killed doing what they knew (to some extent) to be risky; it's quite another for someone to die because they had the misfortune of swimming in the ocean near animals that were conditioned to the point of associating specific human body parts with free food. The "Rogue Shark" show was pretty damning in that regard, though the more appropriate title would've been "Trained Shark." But I expect the shark-feeding defenders to show up in force, pointing out that Collier isn't a "real scientist" and erecting straw-man arguments about how there would be many many more such attacks if this hypothesis were valid.
When you bait and feed wild predators that have the neurological foundation for conditioning, and in some cases you do so repeatedly with the same individuals, you aren't merely pushing the right buttons or gently manipulating existing behaviors. You are reshaping those buttons and changing behaviors. Why this isn't obvious in this context, whereas if we were talking about lions or bears most of us would immediately get the problem, I have no idea. Perhaps its a case of our own cognitive tendencies and biases overriding what ought to be clear. And perhaps some of us have convinced ourselves that the downsides or unanswered questions surrounding these operations are outweighed by all those wonderful, opinion-shaping video clips and photographs or man and shark communing peacefully.
I have to say many people have very "interesting" risk assessment when it comes to high risk activity. I just had a buddy summit Everest (where 1 in 13 people don't make it back!) whereas he's too chicken to jump into a shark baitball alone. I do think that humans have to accept the idea that swimming in beaches is inherently more dangerous than swimming in a pool, especially when it comes to being bitten by wildlife.
Respect nature? Respect sharks? Then leave them alone. You can fight the good fight and work to protect shark populations without pulling a Rob Stewart and insisting that the entire enterprise depends on you frolicking in the water with the animals.
Well I'll agree with that except that we know that if the sharks didn't generate revenue, they'd probably be fished out in areas like the Bahamas. In the areas like Micronesia and Maldives, they are protected because they are part of the diving biosphere, which is their BIGGEST industry.
Hmmm...all sounds pretty arbitrary to me....people have been bitten in just about every arbitrary place on the body by sharks in general. In my limited experience with Oceanics in the Bahamas, they bumped and explored us wherever they could. We were well away from the bait, and not feeding them, and we were not in an area where shark feeding is prevalent. Shark behaviour varies from species to species...... I think it's quite possible that the 'rogue' Oceanic was behaving as Oceanics frequently do when exploring a potential living creature as a potential meal.
Carribean reef sharks at Stuart Coves place in the Bahamas have to be the most habituated fed sharks in the world, the boat showing up is truly like a dinner bell, yet they do not attack humans, unless the body part is clearly holding or in the way of the food, and their behaviour is totally different to Oceanics, almost never bumping up against humans
I do see why you're skeptical about that conclusion. If it was one time, it would be arbitrary to come to that conclusion. Still with 4 victims, and each pair of victims with similar injuries, all by the same shark, it becomes a bit more statistically relevant. There are the other factors to consider. They also chum for the little fish in the Naama bay. Also according to the Egyptian DI who was in the water at the time of the first 2 incidents, the OWT also harassed the scuba divers in the water, in pretty much the same way it was usually fed.
These aren't anything more than suppositions toward a working theory. John's theory answers 2 of the 4 bites but not the other 2 with the mid torso bites. This particular theory conveniently fills quite a few of the gaps.
As for reef sharks vs OWT, in my experience in the South Pacific, when the reefs see you as a competitor, they do charge but I never let them get close enough to see if they actually bite first! This is especially true of the fed sharks of Tahiti, where I've literall been chased out of the area where the feeding occurs, ostensibly because we dived without chumming or feeding.