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an oceanographer at the University of Washington.

Sign Me UpBy signing up you agree to our Terms of Use and Privacy Policy.The marine mammals seem to be altering their songs each year.

they largely avoid getting cancer.though theres no evidence of this.transcoded_urls:[https:\/\/zmgvideos.

they sing under sea ice during the Arctic winter when its dark all day.And when we looked through four winters of acoustic data.

Credit: UIG via Getty ImagesThe researchers also suggested that the bowheads impressive song diversity could be due to an expanding population.

the bowheads were found singing 24 hours a day during the winter months.com\/cms\/2018\/3\/65bd8512-255c-0320\/uploaded_thumbnail.

We would never have known about this without new acoustic monitoring technology.they largely avoid getting cancer.

thumbnail_url:https:\/\/zmgvideos.These song lengths might strike us as odd.