Pigeon feather,coloured scanning electron micrograph (SEM). This is a small portion of a feather,showing two barbs (running from upper left to bottom right). The barbs stem from a thick central shaft up the middle of the feather. Each barb has an array of barbules protuding from either side of it. Feathers are made of the protein keratin | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Nishinaga, Susumu |
Bildgröße: | 2894 px × 3858 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |