This is because dogs can only reproduce with other dogs of the opposite sex within their species.
* Fox terrier mix chihuahua and blue tick beagle are both dogs, but they are different breeds. They are not the same species.
* Species refers to a group of organisms that can interbreed and produce fertile offspring.
* Breeds are variations within a species, developed through selective breeding.
Therefore, a fox terrier mix chihuahua and a blue tick beagle cannot produce offspring together.