Whale songs evolve, but calls persist for generations. Humpback whales have ever-changing and evolving songs. But a new study of whales in Alaska shows their repertoire of calls – including growls, trumpets, and ahoogas – remains more stable

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Whale songs evolve, but calls persist for generations. Humpback whales have ever-changing and evolving songs. But a new study of whales in Alaska shows their repertoire of calls – including growls, trumpets, and ahoogas – remains more stable