CORAL GABLES, FL (January 09, 2008)--Birdsongs are used extensively as models for animal signaling and human speech, offering a glimpse of how our own communicating abilities developed. A new study by ...
The slow trills of the swamp sparrows can be heard during spring and summer across the Eastern and Central North American wetlands. Disclaimer: AAAS and EurekAlert! are not responsible for the ...
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