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The introduction of multiplayer should help preserve the life of BioShock 2.

the meaning and structure of their songs remains cryptic.The songs typically lasted between hours and days.

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.They sang mostly between November and March.

remain mostly inaccessible to humans.the meaning and structure of their songs remains cryptic.

and only rarely did a song continue to be in use for a month.Credit: UIG via Getty ImagesThe researchers also suggested that the bowheads impressive song diversity could be due to an expanding population.