J.V. Martin

Nearly 40 species of shark live in the warm waters of Hawaii's volcanic islands, including white tip reef sharks, Galapagos sharks and tiger sharks.

Witness a clash of oceanic titans in the remote crystal-blue battlefields of Ascension Island. Yellowfin tuna and mako and tiger sharks are all apex predators, but to these sharks, yellowfin tuna are the ultimate prize. The tuna a...