Great White Warning

Published On: Jan 08 2013 11:06:10 PM EST   Updated On: Jan 08 2013 11:11:49 PM EST

VIDEO: It's a first of its kind endeavor: a way to catch, tag and track Great White sharks. And two have been hanging out in the waters off our coast. Electronic tracking says one of them, nicknamed Mary Lee, got as close as 200 yards off Jacksonville Beach early this morning. Here's a look at how she was caught and why she plays an important role in marine research.