Cactus bristles. Coloured scanning electron micrograph (SEM) of bristles (glochids) on a cactus of the family Cereoideae. Bristles are used by cacti as a method of protection from grazing animals. They are barbed so as to enter skin easily,but to be difficult and painful to remove. They develop from buds on the cactus' stem | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Nishinaga, Susumu |
Bildgröße: | 2846 px × 3828 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |