Sperm whales won't interact with whales who sing different songs.
A group of sperm whales, seen from the side, begin their deep-water foraging dives as the sun sets off the Galápagos Islands.In a new study published this week in the journal, a team of linguists and marine biologists mapped how those sperm whales identify themselves with songs, called codas, learned from their family groups.
Sperm whales spend much of their lives in the deep ocean, hunting alone in the pitch black for giant squid and other sea creatures. But between dives, they hang out in small social groups of between three and 15. Sometimes many small groups of sperm whales, who are more closely related to dolphins and orcas than baleen whales, will splash around at the surface for hours at a time, rubbing fins and slapping the water with their tails. In other groups, mothers will collectively nurse young.
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