Laboratory rats. Sprague-Dawley rats (Rattus norvegicus) inside plastic habitation cages. 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: | 3891 px × 2394 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |