Dinosaur family tree gives fresh insight into rapid rise of birds

25 septiembre 2014

The study shows that the familiar anatomical features of birds – such as feathers, wings and wishbones – all first evolved piecemeal in their dinosaur ancestors over tens of millions of years. However, once a fully functioning bird body shape was complete, an evolutionary explosion began, causing a rapid increase in the rate at which birds evolved. This led eventually to the thousands of avian species that we know today.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/HOBHyRYspYM/140925130506.htm

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