Daniel Mennill, an avian biologist at the University of Windsor in Canada, noted that fieldwork has shown songbird vocalizations to be among the most precisely timed behaviors in the animal kingdom. "The synchronized duets and choruses of wrens, for example, are the most highly coordinated animal behaviors ever recorded," he said. "By having these extraordinary muscles, birds have a more precise control of their voice and can actively change the volume and frequency of their song faster than previously thought physically possible," Elemans says.Storytellers: Coen Elemans, University of Utah
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