Superfish: The Fastest Predator

Series 26 - Episode 15 Superfish: The Fastest Predator

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Summary

Marine biologist and film-maker Rick Rosenthal's journeys across three oceans in search of billfish. Among the endangered species he champions are the sailfish and swordfish, plus the marlin, immortalised in fiction by Ernest Hemingway. David Attenborough narrates.
Nature