Hybrid Cats – According to the Pet Poison Helpline, hybrid cats were first created in the 1970s as an effort by scientists to study the possible resistance to feline leukemia in wild cats. Hybrid Cats According to the Pet Poison Helpline, hybrid cats were first created in the 1970s as an effort by scientists to study the possible resistance to feline leukemia in wild cats. The goal of this research was to better understand hereditary factors for leukemia and how to combat the disease. The cats bred for this research
