Reproductive isolation from a cross between a horse and a donkey or between a mare and a donkey, respectively. These animals are nearly always sterile due to the difference in the number of chromosomes between the two parent species. Both horses and donkeys belong to the genus "Equus", but "Equus caballus" has 64 chromosomes, while "Equus asinus" only has 62. A cross will produce offspring (mule or hinny) with 63 chromosomes, that will not form pairs, which means that they do not divide in a balanced manner during meiosis. In the wild, the horses and donkeys ignore each other and do not
Hyundai Equus car. The limousine was available only in South Korea and Russia. The Russian version had the same price tag as the South Korean version. It is a concept vehicle customized by Rhys Millen Racing, based on Equus with 4.6 Tau engine. It included bolt-on RMR Signature Edition air intake and stainless exhaust, increased engine power by 30 hp, RMR Signature Edition embroidered headrests and floor mats, and ostrich hide leather seats with suede accents. The vehicle was unveiled in 2010 SEMA show. It is a version of 2011 Equus sedan built by Mummbles Marketing and DUB Magazine. It included Trex