Penguin down feathers,coloured scanning electron micrograph (SEM). The penguin (family Spheniscidae) has the most densely packed feathers of any bird. Penguins have a layer of down growing beneath the main contour feathers,as well as a thick layer of fat under their skin that traps air and helps to insulate their bodies from the cold. Magnification: x50 when printed 10 centimetres wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Gschmeissner, Steve |
Bildgröße: | 4560 px × 3944 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |