they fly like that because of aerodynamics, knowing about that seems even more impressive than just spelling (though it may just be easier) – https://www.bbc.co.uk/news/science-environment-25736049
May 08, 2015
they fly like that because of aerodynamics, knowing about that seems even more impressive than just spelling (though it may just be easier) – https://www.bbc.co.uk/news/science-environment-25736049