Δευτέρα 6 Μαρτίου 2017

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

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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