Up until a few days ago it was a commonly held belief that modern birds evolved from theropod dinosaurs such as the tyrannosaurus or allosaurus. Now new evidence has been found in favour of the ...
Feathers are the most unique aspect of a bird’s anatomy. The feathers of a bird are made up of keratin, which is the same substance that hair, hooves and beaks are made of. The shaft, or center spine, of the feather is stiff and the tip is flexible for flight. The barbs of the feather […]