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and like much of whale behavior.

getElementById(video-title-container-qGo5wEYqnW).Stafford and her research team published their results on April 4 in the journal Biology Letters.

But bowheads have developed their underwater cultures over millions of years.its this great mystery.We simply cant see what theyre doing.

Thanks for signing up!The green dot shows where scientists moored an audio recording hydrophone about 80 meters below the surface.Why are they changing their songs so much? asked Stafford.

the meaning and structure of their songs remains cryptic.

The songs typically lasted between hours and days.com\/cms\/2018\/3\/65bd8512-255c-0320\/uploaded_thumbnail.

These song lengths might strike us as odd.bowhead populations arent as separated by thick masses of drifting ice floes as they once were.

That whale had apparently survived a hunters attack.with new whales developing new songs.