sexta-feira, 11 de dezembro de 2009

PITCH OF BLUE WHALE SONGS IS DECLINING AROUND THE WORLD, BUT THIS COULD BE A GOOD THING

Frequency of Tones Shifted Down

Scientists from the Scripps Institution of Oceanography at UC San Diego have noticed something very interesting while studying the songs of blue whales: "The basic style of singing is the same, the tones are there, but the animal is shifting the frequency down over time.

Continue read this article here.

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