Fascinating article...thanks to Anne Pearse-Hocker. A pull - TopicsExpress



          

Fascinating article...thanks to Anne Pearse-Hocker. A pull quote: A remarkable international effort to map out the avian tree of life has revealed how birds evolved after the mass extinction that wiped out the dinosaurs into more than 10,000 species alive today. More than 200 scientists in 20 countries joined forces to create the evolutionary tree, which reveals how birds gained their colourful feathers, lost their teeth, and learned to sing songs. The project has thrown up extraordinary similarities between the brain circuits that allow humans to speak and those that give some birds song: a case of common biology being arrived at via different evolutionary routes.
Posted on: Wed, 07 Jan 2015 03:24:08 +0000

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