So yes, there are legitimate ethical concerns" (Weilenmann). "To my knowledge retro-orbital bleeding is mainly used in mice, rats, hamsters and guinea pigs. This technique does have important ...

Techniques for blood collection from the rat include puncture of the heart, retro-orbital plexus, jugular vein, saphenous vein, tail blood vessels, carotid artery, abdominal aorta, and vena cava.

“Rat poison indiscriminately harms animals up and down the food chain, making them more susceptible to disease and causing internal bleeding and death. It’s heartening to know that California will ...