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  • Narrator: OFF THE COAST OF GUADALUPE ISLAND,

  • A TEAM OF RESEARCHERS ARE SEARCHING

  • FOR THE LARGEST GREAT WHITE EVER RECORDED --

  • "DEEP BLUE."

  • THAT HAS LED THEM OVER AN EXPANSE KNOWN AS "THE LEDGE."

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  • Man: Ohh!

  • ♪♪

  • [ INDISTINCT SHOUTING ]

  • ♪♪

  • Whoo-hoo!

  • ♪♪

  • Man: AH, WHAT A DIVE.

  • WHEN THAT THING HIT, IT WAS JUST, LIKE, BOOM.

  • SHARK DOWN THERE MUST HAVE MEASURED

  • AT LEAST 16, MAYBE 17 FEET.

  • Narrator: WITH THE CAGE AT THE SURFACE,

  • THE TEAM ARE EASY TARGETS FOR THE HUGE SHARKS LURKING BELOW.

  • McMillan: THEY KEEP COMING FROM THE DEEP.

  • I'D SAY THEY'RE ABOUT PROBABLY 200 FEET DOWN.

  • Narrator: BUT THE CAGE ISN'T THEIR ONLY TARGET.

  • THE TEAM WITNESSES ONE GREAT WHITE BITING ANOTHER

  • IN WHAT APPEARS TO BE A PREDATORY ATTACK.

  • SCIENTISTS USED TO BELIEVE THAT THIS BEHAVIOR WAS RARE.

  • BUT A RECENT DISCOVERY HAS LED TO A CUTTING-EDGE THEORY --

  • GREAT WHITE SHARKS COULD FEED OFF EACH OTHER.

  • THERE ARE SOME THEORIES THAT WHITE SHARKS ARE CANNIBALISTIC.

  • THIS HAS TO DO WITH A SHARK THAT WAS TAGGED IN AUSTRALIA.

  • THIS SHARK HAD BEEN EATEN BY A LARGER SHARK.

  • Narrator: THE DISAPPEARANCE OF THE NINE-FOOT GREAT WHITE

  • NAMED "SHARK ALPHA"

  • HAS FASCINATED RESEARCHERS SINCE 2003.

  • MONTHS AFTER SCIENTISTS PLACED A TAG ON HER,

  • THE DEVICE SUDDENLY WASHED UP ON SHORE...

  • AND THE DATA RECOVERED FROM IT

  • LED SCIENTISTS TO A STARTLING CONCLUSION.

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