Wolf spider's head. Coloured environmental scanning electron micrograph (ESEM) of simple eyes (ocelli) on the head of a wolf spider (family: Lycosidae). Its mouthparts are partially seen,including the chelicerae (jaws). The arrangement of eyes differs widely between spiders,but in general they have eight eyes: several large ocelli for vision,and several smaller ones to increase sensitivity to light levels. Ocelli cannot focus or see in colour,but are very good at detecting differences in light intensity. A spider's main sensory apparatus is the system of sensory bristles (setae) covering its body | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Berrod, Thierry / Mona Lisa Production |
Bildgröße: | 3409 px × 2565 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
|