Home / horse genetics horse genetics Books SFF Equines SFF Horse Breeds: The Appaloosa By Judith Tarr April 15, 2019 Comment number: 22 Books SFF Equines Genetic Engineering, Equine Style By Judith Tarr March 4, 2019 Comment number: 17 Books SFF Equines The Ancient Equine and How (and Where) We Think It Grew By Judith Tarr March 12, 2018 Comment number: 26