Scanning electron micrograph (SEM) of the parallel barbs of a feather from a falcon (Falco sp.). The barbs branch off a central stem called a rachis (not seen), and themselves branch into finer barbules, which terminate in tiny hooks (barbicels), which attach to the adjacent barbule. These links allow the feather to present a flat blade. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / NANOFLIGHT (R) MOVIE, STEFAN DILLER |
Modell-Rechte: | nicht erforderlich |
Länge: | 28 Sekunden |
Seitenverhältnis: | 16:9 |
Restrictions: | - |