Fossilised feathers dating back 160 million years reveal the secrets of flight

[السياسي]

Roughly the size of a pheasant, Anchiornis roamed China 10 million years before Archaeopteryx - the first recognised bird.

https://www.dailymail.co.uk/sciencetech/article-6641083/Fossilised-feathers-dating-160-million-years-reveal-secrets-flight.html?ns_mchannel=rss&ito=1490&ns_campaign=1490 ]قرااء المزيد ..... [/url]