DragDino

Bird feathers are fascinating structures that fulfill numerous functions: They protect, insulate and enable flight by directing the flow of air. Each feather is made of keratin and grows out of the feather sac. There are different types: Contour feathers for body covering, down for insulation and flight feathers for flight. In flightless birds such as ostriches and emus, feathers are mainly used to regulate heat and protect against environmental influences.

Feathers in display: Nuremberg Zoo

Bild Credits: Thomas Hahn