The quagga, a relative of the zebra, went extinct over 100 years ago. 4) The Dire Wolf (Canis Dirus) This is probably the most famous extinct wolf species thanks to the popular HBO series A Game of Thrones.

Ancient horses lived in North America from about 50 million to 11,000 years ago, when they went extinct at the end of the last ice age, said Ross … Now, a group of scientists outside of Cape Town are bringing it back. There are now about 500 wild Przewalski's horses … New genetic research has revealed that the world's wild horses went extinct hundreds, if not thousands, of years ago. The aim was to prevent the spread of rabies to humans and reduce the wolf’s attacks on the domestic horse population. All breeds of horses and ponies, from the mighty Shire to the tiny miniature horse, all are part of the same successful species – Equus caballus. Those horses then reproduced in the wild, and in 2008 the species was upgraded from extinct to endangered. This page lists breeds of horses that were once developed as distinct breeds, types or subspecies of Equus ferus caballus but have become extinct, either due to crossbreeding and merging with other breeds or dying out of a population. Outside of a curiosity to see if recreating an extinct breed could be accomplished, there are little if any advantages for the cloned horses themselves.