Shark Alpha that was tagged by scientist a 3 metre great white shark..4 months later tag was found to have data on it that suggest it had been inside the belly of another animal it dove off the continental shelf to over (1500 ft) deep...the device then heated up from (47 degrees F). to (78 degrees F)....Keep in mind that the ocean water that deep is considerably colder than that above... I wouldn’t think giant squid it would attack and take bites only…my theory is it was "submarine" or (megladon) OR a shark over 30 plus foot…and it actualy sences with its sensory organs the tag transmitting from the other shark…this giant shark being so big can scense more and more greatly…ive observed bull sharks 6 to 8ft attack the one that was tagged eat it whole or bite it in half….usualy happens where the salt is least consitrated in the water, and it doesn’t happen all the time but it happens it’s just a theory but I believe that this was a megladon or predatory shark presumably 30 ft in length (9 metres) what could it be?