Killer Whales use vocalization to communicate with each other, but each pod has it's own unique 'accent,' which makes it easy for Orcas to identify members of their own pods.
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20 Years After ‘Free Willy,’ Was It Right to Free Keiko the Killer Whale? Keiko died in 2003 from natural causes, but the debate surrounding his release back into the wild continues.
Next to humans, orcas are the most widely distributed mammal. Orcas inhabit all oceans of the world but are most numerous in the Arctic, the Antarctic and areas in nutrient-rich cold water upwellings.