Spider's web. Coloured scanning electron micrograph (SEM) of threads of spider's silk (yellow) encasing a woodlouse. Silk is produced from silk glands in the abdomen of the spider. Inside the glands the silk is in liquid- crystalline form,but as a thread of silk is squeezed out by the spinnerets the liquid hardens to the protein fibroin. Some spiders construct webs with which to catch prey. They may then wrap their prey in layers of silk to secure it to the web before feeding as seen here. Woodlice are small terrestrial crustaceans. A region of tough exoskeleton is seen. Magnification: x850 when printed 10cm wide | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Gschmeissner, Steve |
Bildgröße: | 2400 px × 1688 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |