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        A Sharkwreck Mystery!

        Thirty miles off the coast of North Carolina there is a shipwreck on the bottom, 130 feet down.  Swarming around the wreck are dozens of Sand Tiger sharks.  They look menacing, but they seem to be very docile.  What are they all doing there, in one spot? Using a variety of filming techniques, Jonathan attempts to discover the secrets of the sand tiger shark gatherings at the wrecks, and does a night dive with these sharks. The companion study guide teaches how a hypothesis can be tested by experimentation.


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