Δευτέρα 6 Μαρτίου 2017

The opposite birds: What wiped out the ancient rulers of the sky

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Millions of years ago, the skies were full of birds strangely different from the ones we know today. So how did modern birds come to rule the roost?

from #AlexandrosSfakianakis via Alexandros G.Sfakianakis on Inoreader http://ift.tt/2n6EyJO
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