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BERKELEY, Calif., April 4 (UPI) -- A new exhaustive family tree of hummingbirds -- published today in the journal Current Biology -- reveals the remarkable 22-million year evolutionary journey from a single common ancestor to today's assemblage of 338 different species.
It's the story of a tiny bird which begins in Europe 22 million years ago. After making its way to Asia and North America, and the delicate creature suddenly and rapidly flourishes in South America -- its family radiating out into 140 new species amongst the varied terrain and thin air of modern-day Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile and Argentina.
Source: Here
Source: Here
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