How do you approach a shark that is the size of a semi-truck?  Very
carefully.  At least whale sharks eat plankton and such--not humans. 
And that's a good thing for this big guy, because he needs some help.

Again, whale sharks are not known to be violent--but they are exceptionally large.  And anything painful can rub a wild animal the wrong way.  Would I attempt what these people do?  Maybe.  But I would be quite terrified.  I suspect I'd have to change my wetsuit after the rescue was over...

Video uploaded by Noel Hall on November 12, 2012.

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