A. House mice and their country cousins, deer mice, might be in the same area, but they tend not to interact with the far larger Norway rats familiar to city dwellers, said John W. Hermanson, associate professor at Cornell College of Veterinary Medicine in Ithaca, N.Y. read more
Rats and mice cannot live together. Rats engage in muricide, a predatory behavior. Seventy percent of wild rats and 12 percent of laboratory rats hunt and kill mice. read more