The bullfrog's splayed legs may be due to genetic factors. This characteristic is passed on to offspring through genes, that is, if the parent frog carries the gene for having splayed legs, the offspring may also show similar characteristics. In addition, environmental abnormalities may also cause the occurrence of splayed legs in bullfrogs, especially animals that are sensitive to climate, such as frogs and bullfrogs, which are prone to mutations when the environment is abnormal.