| Faint disturbances in the heart of Antarctic waters gives way to breathtaking images of Whales hunting Krill in this fantastic video from BBC natural history masterpiece, Planet Earth. |
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| Off the coast of Venezuela, we encounter the whale shark - the biggest of all the fish in the ocean. In this clip, a shoal of bait fish are using the whale shark as a protective shield. However, unexpected developments are about to take place when we encounter some yellow-finned tuna... |
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| The fascinating underwater world of Bunaken Island marine park which lies near Manado on the Indonesian Island of Sulawesi. |
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| Japan's annual whale hunt sets sail, despite strong calls to end it. CNN's Kyung Lah reports. |
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| Wild tigers face a number of threats, including poaching and habitat loss. Help WWF double the wild tiger population by 2022. Visit www.worldwildlife.org/tigers to learn more. |
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