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Blue Planet ventures into the unlimited spaces of the Open Ocean on the trail of the fastest and most charismatic hunters found on the planet: Whales, Dolphins, Tuna, Shark and Rapier nosed billfish.
The Open Ocean is unimaginably immense – it covers more that 360 million square kilometres of the earth’s surface. Much of this huge expanse of seawater is marine desert with virtually no sign of life.
Yet somehow that fastest and most charismatic predators on earth survive out here.
This program charts how they track down prey in the seemingly featureless seas, following the extraordinary life of yellowfin tuna from a minute egg to a 200 kilogram, voracious predatory giant.