This video says about itself:
A “shark‘s eye” view: Witnessing the life of a top predator
28 Feb 2014
Scientists at the University of Hawaii and the University of Tokyo are attaching sophisticated sensors and video cameras to sharks, giving them a “shark’s eye” view of the ocean and revealing new findings about how sharks swim and live in their natural environment. The new research is being presented at the 2014 Ocean Sciences Meeting co-sponsored by the Association for the Sciences of Limnology and Oceanography, The Oceanography Society and the American Geophysical Union.
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