Hummingbird feather, microscopy
Référence de la vidéo 11936988
| Light microscope footage of a feather from a hummingbird (Trochilidae). Bird feathers are made up of hundreds of barbs (black) extending from a central shaft, or rachis (bottom left to top right). Each barb is also branched, into barbules (brown). The barbules contain hooks called barbicels, which attach to adjacent barbules, holding the feather in a stiff plane. The colour of humminbird feathers is largely due to the diffraction of light from the feather surface, rather than from pigment. | |
| Licence : | Droits gérés |
| Crédit : | Science Photo Library / Nuridsany, Claude / Perennou, Maria |
| Model Release : | Non requis |
| Durée : | 12 Secondes |
| Aspect ratio : | 4/3 |
| Restrictions : | - |
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