Listening to Sounds - From the Earth and Beyond
August 20, 2013
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From VOA Learning English, this is Science in the News. I’m Avi Arditti.
And I’m Faith Lapidus. Today we tell you what natural event was found to be as loud as a strong earthquake. We also tell about mysterious and powerful radio signals that scientists say have come to us from far away. But first, we tell how free computer software can help with studies of animal populations.
Researchers have developed software that can listen to recordings of a forest and tell us what animals are there. More importantly, the software can show what animals are not there. This new technology is available on the Internet, and free for anyone to use.
Here is a recording of a rainforest in Puerto Rico. Listen closely, and try to count how many frogs you hear.
You probably had trouble counting the frogs. One of those animals -- the one making the really high-pitched chirp -- is endangered. It is called a Plains Coqui.
Thousands of species die out each year. Scientists want to know how climate change and land development are affecting animals like the Plains Coqui. But how can scientists know how many species are disappearing if they do not know how many there are?
New software can help them. It is called the Automated Remote Biodiversity Monitoring Network, or ARBIMON.
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