The wild cat index percentage is determined using the relative genetic similarity between all of the domestic cat samples we test and four big cats (Tiger, Leopard, Cheetah, Cougar). This means we measure how genomically similar your cat is to these wild felines when being compared to all other domestic cat samples in our database, not to the specific wildcat base pairs themselves. Keep in mind: we compare the microscopic genetic differences to see which wild cat your cat is the most similar to. This comparison does not reflect genetic heritage or percentage but is a fun comparison of DNA profiles between genetically different species.