Feathers are highly ordered, hierarchical branched structures1,2 that confer birds with the ability of flight3,4,5. Discoveries of fossilized dinosaurs in China bearing ‘feather-like ...

But how exactly do feathers form molecularly? ... results suggested that a simple interaction between Shh and Bmp2 is sufficient to model the creation and patterning of barbs in feather development.

This will be rendered clearer by a reference to the fifth diagram, which figures the barbs on a normal feather taken from a cormorant. In this bird the membranes are wanting. Nature - An ...

This is a closeup of a back contour feather barb from a male eastern bluebird; demonstrates a protein with channel-type nanostructure. (Scale bar = 500 nanometers.) ...