Illustration of sperm cells approaching and trying to fertilise an egg cell. Sperm have a round head and a long, agile tail for propulsion. Only one sperm from the millions released can fertilise the oocyte. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Michael Alexowski |
Taille de l’image : | 4978 px × 3520 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |