A female great white shark tagged in waters off South Africa has completed the first known transoceanic trip for an individual shark, traveling farther than any other shark known, more than 12,400 miles (more than 20,000 kilometers) to the coast of Australia and back again, according to the Bronx Zoo-based Wildlife Conservation Society (WCS) and other organizations in the most recent edition of the journal Science. The epic odyssey of Nicole (named after Australian actress and white shark lover Nicole Kidman) has astounded researchers and will change long-held notions about how these charismatic predators move through the world’s oceans. In addition to traveling farther than any other known shark, Nicole completed the trip from South Africa to Australia and back in just under nine months, the fastest return migration of any swimming marine organism known.“This is one of the most significant discoveries about white shark ecology and suggests we might have to rewrite the life history of this powerful fish,” said WCS researcher Dr. Ramón Bonfil, shark expert and lead author of the study. “More importantly, Nicole has shown us that separate populations of great white sharks may be more directly connected than previously thought, and that wide-ranging white sharks that are nationally protected in places such as South Africa and Australia are much more vulnerable to human fishing in the open oceans than we previously thought.”

The story of Nicole began on November 7, 2003, when Bonfil and his colleagues from the Marine and Coastal Management Department of South Africa and the White Shark Trust attached a satellite tag to Nicole’s dorsal fin as part of a large study on white shark migrations. The tags—specifically known as pop-up archival tags—record data on time, temperature, water depth, and light levels as the shark moves through its habitat. On a pre-recorded date, the tag detaches from the shark and floats to the surface, where it transmits its data sets to a researcher’s computer via satellite.

View: Full Article | Source: Global Surf News

I read this in the news. It's my understanding that most sharks have to keep moving to keep water going past thier gill slits. Still that a lot of miles to travel for food or mate's.

^Indeed. We know so little about teh ocean and teh creatures that inhabit it. Research and lots of it into the ocean`s mysteries should be greatly encouraged.