A feather barb that shows some indication of original coloration. The oblong brown masses within the image are regions of color within the barbules. In this specimen, the overall feather color ...

Alteration of the expression of the co-called 'Sonic Hedgehog' gene can transform feet scale and wing feathers. While a transient over-expression of the gene can permanently turn feet scales into ...

Scientists have revealed how bird feathers form in a wave-like motion, creating a regular pattern in the skin. The team has identified chemical signals that are switched on and off in the birds ...