Pain analysis. Scientist applying increasing pressure to a laboratory rat's foot to test the animal's pain threshold. As soon as the rat indicates it is in pain,the weight placed on the foot is measured and recorded | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Psaila, Philippe |
Bildgröße: | 5157 px × 3419 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |