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New forensic technique gives clues about sharks from bite damage
Date:12/1/2009

fortunately, sharks often do not distinguish between the signals sent by prey and equipment, which can be ruined by water seeping in through the bite marks, he said.

"That's one thing that makes them special they can sense electro-magnetic fields around their prey items," he said.

Laying cable lines at the bottom of the ocean is extremely expensive, and having to remove a piece, fix it and install it again adds to the cost, Burgess said. "Knowing that a certain species of shark did the damage is useful because in the future cable lines can be placed in a different location, outside the path of that particular shark's area of distribution," he said.

And the ability to determine what size shark was involved in an attack by the size and configuration of its bite marks could result in the installation of a heavier seal designed to withstand damage from that kind of shark, he said.


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Contact: George Burgess
gburgess@flmnh.ufl.edu
352-392-2360
University of Florida
Source:Eurekalert

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