Using the family tree linking every known bird species, scientists now say that birds appear to be accelerating their rate of evolution. Most people did not predict that. 

They spent five years creating their tree, using millions of years worth of fossil data stretching back to Dinosaurs. They then mapped where on Earth and when in history birds’ diversification took place. Their paper in Nature contains results of how 9,993 bird species currently alive globally made it to where they are today. Based on previous studies, the researchers expected to see bird speciation slowing down, but they instead found that birds’ speciation rate is increasing, not declining.


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