you know, i understand that it's in the name of science (or at least tv ratings), but this idea of building a replica of a great white shark with which to study sharks in the wild is a bit ... well ... weird.
but here it is: a replica of a great white shark built by Fabien Cousteau to shoot film for his CBS special Sharks: Mind of a Demon (not that that's an inflamatory title or anything):

fabien cousteau (inside the fake shark) is lowered from deck
Fabien gets into the shark geared up as for a regular scuba dive (using a rebreather). the shark is then flooded, and he drives it along. i can't figure out from the story if the shark is electrically powered. anyway, here's a picture of Fabien inside the shark, before they close it up:

maybe Fabien will next build a replica of a scientist so he can investigate first hand what goes on in that milleu.
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6/28/2006 - Hmmmm?
To dismiss it as mere showmanship seems unfair when it might produce some legitimate observations. I speak as a scientist of course.