Hen's feather under a dissecting microscope. Feathers,composed of the protein keratin,cover the bodies of birds and provide heat insulation and streamlined shape. A feather consists of the quill (embedded in the skin) and the shaft (rachis) of the feather (running diagonally in this image),which carries the ''barbs'' | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / SciMAT |
Taille de l’image : | 3100 px × 2163 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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