Polarised light micrograph of a fractured section of ox horn. Horn is composed of layers of keratin (the same substance as forms hair and nails). In addition to hair,most land mammals produce a type of hard keratin,known as horny keratin,in the form of nails,hooves,claws,horns and quills. Magnification: x68 at 10cm wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Lowry, Steve |
Bildgröße: | 3751 px × 2824 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |