European mouflon Harzgerode in 1906, followed by further releases in the Taunus and the Solling. In all cases, the mouflon favoured level or low-lying plains with forest cover and not, as expected, rocky, mountainous areas. Gradually they were mixed with varieties of domestic sheep, especially crossbreeding with the racka. After the European mouflon population declined during the First World War, in the German Reich alone about 2,500 were counted in 1938. After a further decline during the Second World War, the number of European mouflon worldwide in 1954 was only about 4,500. After that, numbers recovered due to careful management and grew
Wild horse stock from which domesticated horses are descended. The horse family Equidae and the genus "Equus" evolved in North America, before the species moved into the Eastern Hemisphere. Studies using ancient DNA, as well as DNA of recent individuals, show the presence of two closely related horse species in North America, the wild horse and "Haringtonhippus francisci", the "New World stilt-legged horse"; the latter has been taxonomically assigned to various names. Currently, three subspecies that lived during recorded human history are recognized. One subspecies is the widespread domestic horse ("Equus ferus caballus"), as well as two wild subspecies: the recently extinct