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Tierney Thys swims with the giant sunfish


Tierney Thys swims with the giant sunfish
Tierney Thys swims with the giant sunfish
Duration: 16:41

Marine biologist Tierney Thys asks us to step into the water to visit the world of the Mola mola, or giant ocean sunfish. Basking, eating jellyfish and getting massages, this behemoth offers clues to life in the open sea.