In terms of outright top speed, the black marlin is the fastest fish in the ocean capable of accelerating to an unbelievable 129km/h (80mph). Steve Leonard joins a conservation team who tag marlin to follow their movements and witnesses their incredible power. Subscribe: http://bit.ly/BBCEarthSub

WATCH MORE:
New on Earth: https://bit.ly/2M3La96
Oceanscapes: https://bit.ly/2Hmd2kZ
Wild Thailand: https://bit.ly/2kR7lmh

Welcome to BBC EARTH! The world is an amazing place full of stories, beauty and natural wonder. Here you'll find 50 years worth of astounding, entertaining, thoughtprovoking and educational natural history content. Dramatic, rare, and exclusive, nature doesn't get more exciting than this.

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