Hedgehog skin and spines. Coloured scanning electron micrograph (SEM) of the skin of a hedgehog,with spines (yellow) protruding from it. A spine is a modified hair made from the protein keratin. The interior (not seen) is hollow and crossed with transverse septa,making the spines strong but light. Adult hedgehogs have about 8000 spines,which are used to protect against predators. Magnification: x15 when printed at 10 centimetres wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Gschmeissner, Steve |
Bildgröße: | 3989 px × 3006 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |