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Orcas rip rudder off boat and follow it all the way to port, in 1st known attack of its kindPrevious reported interactions between orcas and sailboats followed a clear pattern, with the animals losing interest and swimming away once they had broken the rudder.
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Orcas have sunk 3 boats in Europe and appear to be teaching others to do the same. But why?Scientists think a traumatized orca initiated the assault on boats after a "critical moment of agony" and that the behavior is spreading among the population through social learning.
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Extremely rare white killer whale spotted off California coastThe mostly white orca calf was spotted by a whale-watching vessel. It most likely has a pigment-related condition called leucism, experts say.
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Inbreeding may be causing orca population in the Pacific Northwest to crashInbreeding among an endangered population of orcas off the coasts of British Columbia, Washington and Oregon is a cause for concern.
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Photo shows 'massive' great white shark scarred after rare battle with 2 serial killer orcasA pair of orcas off the coast of South Africa have been ripping open sharks and feasting on their livers for the last eight years. A great white shark that survived an attack by the serial killer brothers has now been identified through huge scars across its massive body.
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2 orcas slaughter 19 sharks in a single day in South Africa, eating their livers and leaving them to rotAn orca killing spree continues in South Africa. Their target: shark livers.
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Orca appears to adopt (or abduct) a baby pilot whaleResearchers have recorded an orca swimming with a pilot whale calf in a possible interspecies adoption, but how the two came together is a mystery.
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Orca males are burnouts who let their moms do all the hunting, surprising study findsMama orcas are forgoing having more young and instead dote on their existing sons.
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Grisly new footage shows orcas attacking a great white shark and eating its liverNewly released video shows a gang of killer whales in South Africa attack and slaughter a great white shark.
