Watch this submarine play tag with a shark from the darkest depths of the ocean

<p>This short film documents the quest to tag a rare bluntnose sixgill shark, and find out more about the massive parts of the ocean we&#x2019;ve never explored.</p><br /><br /><br /><p>Ocean researchers trying to learn more about super deep water species often encounter complications. Take efforts to track the elusive bluntnose sixgill shark, a prehistoric beast that never surfaces. Scientists have dragged some up from the deeps in hopes of attaching a tracker, only to discover that the dramatic light, temperature, and pressure changes seemed traumatic (not good for the animal, or understanding its later behavior). The sharks have also been spotted from submarines, but those are only short observations.</p><p>Read Full Story</p><div class="feedflare"><br /> <br /></div>

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