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Orcas can hunt and kill the world's largest fish, research finds
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Human impact on ocean increasing pressure on dolphins and whales, says charity
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Watch: Man 'body slams' orca and calf in New Zealand
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Fourth member of people smuggling group jailed for four and a half years
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People smugglers jailed for ‘dangerous’ runs between UK and mainland Europe
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Orca attacking boats are ‘playing games for adrenaline rush’
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The oldest orca in captivity to be released after more than 50 years
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Steve Backshall reveals the animal he’d like to be reincarnated as
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Watch: Rare footage shows orcas killing great white shark
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Hunt for orca pod after baby stranded in New Zealand
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Norway faces backlash from doctors for minke whale hearing experiments
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Killer whale that spent 17 days 'mourning' dead calf gives birth again
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30-year-old orca Kayla dies at SeaWorld's Orlando park
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