* The development of feathers, which could not have conceivably "grown" from the scales of dinosaurs<ref>http://icb.oxfordjournals.org/cgi/reprint/40/4/687.pdf</ref> | * The development of feathers, which could not have conceivably "grown" from the scales of dinosaurs<ref>http://icb.oxfordjournals.org/cgi/reprint/40/4/687.pdf</ref> |