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 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Fermariello, Mauro |
Bildgröße: | 4064 px × 2704 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |