Onion and garlic poisoning results in oxidative damage to the red blood cells (making the red blood cells more likely to rupture) and gastroenteritis (e.g., nausea, oral irritation, drooling, abdominal pain, vomiting, diarrhea).
What breed of dogs have killed more people? The Pit bull has killed the most people, surprisingly, as they are so friendly. The second breed that has killed the most people is the Rottweiler.
The poisoned grain and fumigants used to kill prairie dogs also kill other species that inhabit prairie dog towns or eat prairie dogs. Species so affected include the burrowing owl, some hawks, the cottontail rabbit, various reptiles, and, at one time, the black-footed ferret.