A lesson from mating birds: The song gets sweeter over time, a Miami scientist finds.

Canebrake wrens are songbirds, the subset of species whose calls develop beyond the standard tweet or chirp into full-fledged ballads — and within that group they are part of a somewhat exclusive club: duetting birds.

http://www.stltoday.com/news/national/a-lesson-from-mating-birds-the-song-gets-sweeter-over/article_7c25395e-d013-50d5-8509-7e8fbe64703b.html

Posted on April 1, 2018 10:46 AM by biohexx1