It's not like there aren't pure breed animals at the shelter looking for homes. (onegreenplanet.org)
Mixed breed dogs often do not have the health problems associated with pure breed animals. (00520b4.netsolhost.com)
Primary epilepsy is widely believed to be inherited, as evidenced by it prevalence in certain lines of dogs and cats, as well as its tendency to exist more commonly in pure bred animals a opposed to those of mixed breed. (web-dvm.net)