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Whales pick up new songs

BBC News Online

29th Nov 2000

Whale in Ocean near Shore

Male humpback whales sing songs to attract females Even singing whales are not immune to picking up a catchy tune. Humpback whales living in the waters of the Great Barrier Reef have astonished scientists by learning a new melody sung by visitors from a distant ocean.

Such a revolutionary change is unprecedented in animal cultural vocal traditions In less than two years, the giants of the deep swapped their own distinctive serenade for that of their wandering Indian Ocean cousins.
Australian marine biologists believe the males copied the songs of the
migrants to stop potential female suitors from losing interest. And they
think it is an unprecedented example of a "cultural revolution" in whale

Moonlight serenade

Male humpback whales sing on their way to and from their mating grounds in the waters of the Great Barrier Reef off the east coast of Australia. Normally, whales in different ocean basins sing unrelated songs. Like birds, their melodies can change over time, but usually this is a slow, gradual process.

So Dr Michael Noad of the University of Sydney, New South Wales, and
colleagues, were surprised to find that the whales they were studying had
suddenly picked up a new tune. Dr Noad told the BBC: "All of a sudden, a few dozen whales have come across from the west coast population and mixed in with the east coast population.

"In 1996, when we were recording the whales we picked up a small number of whales that were singing this completely different song. Literally, within a period of a few months, the east coast singers have all changed their song and adopted the west coast song."

'Cultural novelty'

The marine biologists found that at first only two of 82 east coast whales
were singing the new tune. But over a period of less than two years, all the males had switched songs. The finding is intriguing because it suggests that whales may be attracted to the cultural novelty of a song and then adopt it themselves. Reporting their findings in the scientific journal Nature, the team said: "Such a revolutionary change is unprecedented in animal cultural vocal traditions and suggests that novelty may stimulate change in humpback whale songs."

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