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Latest Adrienne DuBois Stories

2009-01-12 08:47:31

Songbirds such as swamp sparrows appear to sing sophisticated, hard-to-produce songs in hostile situations, a U.S. university researcher said. When challenged, male swamp sparrows escalate their vocal performance by increasing the frequency range and speed of their songs, a study by University of Miami biology graduate student Adrienne DuBois said. The findings add to researchers' understanding of how birds use signals to communicate, DuBois and her colleagues said. Vocal performance was...

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2009-01-09 12:20:00

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 Adrienne DuBois, a graduate student at the University of Miami (UM) College of Arts and Sciences Department of Biology, shows that the Swamp Sparrow has the ability to emit songs that are physically difficult to produce during hostile situations, implying that songbirds use sophisticated vocal performances as signals in aggressive...


Word of the Day
glogg
  • Scandinavian punch made of claret and aquavit with spices and raisins and orange peel and sugar.
This word comes from the Swedish 'glogg,' which is an alteration of 'glodgat,' mulled (wine).
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