Nature's great events. Episode 4, The great tide / narrated by David Attenborough ; producers, Hugh Pearson ; series producer, Karen Bass ; a BBC/Discovery Channel co-production in association with Wanda Films ; BBC Earth
A mighty army of dolphins, sharks, whales, seals and gannets hunt down billions of sardines along South Africa's east coast each winter. This is the Sardine Run: an underwater armageddon, the greatest gathering of predators anywhere on the planet, and the most spectacular event in the world's oceans. Pioneering a unique boat stabilised camera mount for surface filming, the crew capture all the high octane action as the predators compete for sardines, filmed with aerial, underwater and above water cameras
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Title from resource description page (viewed May 18, 2018)