We're going to need a bigger boat!  Jeb and Blake head to Australia to investigate the idea that Great White sharks are immortal! Links: 1977 San Diego article about Sea World's shark exhibit Article about weird things allegedly found inside sharks. Henri Bource - https://en.wikipedia.org/wiki/Henri_Bource Groo the Wanderer NFA - on the beach! Sharks are famous for their teeth - and Nimoy's have improved since season one as well. Nimoy just walking on the beach manages to attract a diver's audience. Diving pioneer and explorer, Hugh Edwards.   Ray Keys at Sea World has lots of great shark information.   And don't forget researcher Dr. William Gladstone! (You can find him on twitter at @DrBillGladstone)