I like the idea to have the banner divised into 2 pics a fixed one and a scrolling one . However , the pic with which you changed the angel icon is a bit too big in my opinion . Isn ' t it a way to make it smaller ? I think the main part of the banner should be the scrolling pic but we can ' t it see enough at least , i don ' t . Maybe try shorter the fixed pic to 30 % of the banner screen and up the scrolling part to 70 % of the space . Anyway , i think it would be super cool to keep this base idea for the Runaway banner even if you don ' t end up winning . It ' s kind of original and new for the sub . <| sep |> There is no single way that species are defined , that is the problem . Generally speaking , it ' s some mix of morphology , ecology , and just the contingent history of taxonomy . I don ' t know of any cases though where species are defined by some threshold of genetic distance . Not that it hasn ' t been suggested , but nobody really takes these suggestions seriously .