Laboratory rat. Sprague-Dawley rat (Rattus norvegicus) being weighed. This variety of rat is commonly used for animal experiments and has a life span of up to 3 years | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Fermariello, Mauro |
Taille de l’image : | 4064 px × 2672 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |