Dinosaur Arms to Bird Wings: It's All in the Wrist

October 1, 2014 1:26 PM

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Dinosaur Arms to Bird Wings: It's All in the Wrist

One of the last niggling doubts about the link between dinosaurs and birds may be settled by a new study that shows how bird wrists evolved from those of their dinosaur predecessors.

The study, reported in the Journal PLOS Biology, shows how nine dinosaurian wrist bones were reduced over millions of years of evolution to just four wrist bones in modern day birds.

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