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US Navy building terrifying 'Orca' undersea drones that can sink submarines, hunt mines and dive to 11,000ft | The Sun
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Ailing orca stuck in France's River Seine to be lured to sea using drone with loudspeakers | France | The Guardian
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Scientists launch drones to collect vital data on beloved orcas, hoping to stop slide toward extinction – GeekWire
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New drone, underwater footage of orcas stuns researchers, gives intimate look at killer whales' family life
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