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Barbara Block: Tagging Tuna in the Deep Ocean

Tuna are ocean athletes -- fast, far-ranging predators whose habits we're just beginning to understand. Marine biologist Barbara Block fits tuna with tracking tags (complete with transponders) that record unprecedented amounts of data about these gorgeous, threatened fish and the ocean habitats they move through.

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TED Talks on Link TV

Link TV is proud to be a part of the TED Open TV Project, helping to bring TED's innovative talks to airwaves around the world. With charismatic and brilliant speakers from the ranks of global trendsetters and changemakers, TED's signature talks are inspiring, intriguing, and sometimes, as TED puts it, even "jaw-dropping." Link TV's curatorial team will be selecting the most interesting TED Talks, presenting a new one to our national audience each week.

Go to linktv.org/tedtalks for more TED Talks on Link TV.

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About TED

Since 1984, the small non-profit TED has been on a mission to spread ideas. In addition to holding two annual conferences, in California and the UK, that unite thousands of people from the technology, entertainment, design, science and business sectors, TED also provides its thought-provoking content via an award-winning video site, TED.com.  Through interactive presentations and a library of over 700 talks, TED.com seeks to engage and inspire a global audience through a "clearinghouse" of "ideas worth spreading."  The common denominator amongst the TED community is a hunger for a deeper understand of the world, and a hope for a better future.

Learn more at ted.com/talks.