| Dog sperm. Coloured scanning electron micrograph (SEM) of immature dog sperm. These immature sperm are characterised by a small amount of unshed residual cytoplasm about a third of the way down the tail. Magnification: x2000 when printed at 10 centimetres wide | |
| Licence : | Libre de droits |
| Crédit: | Science Photo Library / Gschmeissner, Steve |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |