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 Hyundai Equus The Hyundai Equus () is a full-size luxury car produced by the South Korean manufacturer Hyundai since 1999. In 2009, Hyundai released the second generation utilizing a rear-wheel drive platform and competing with the BMW 7 Series, Mercedes S-Class, Audi A8 and Lexus LS. As of August 2014, the second generation is marketed in South Korea, Russia, China, United States, Canada, Central America, and South America — as well as in the Middle East under the Hyundai Centennial nameplate. The name ""equus"" is the Latin word for "horse". On November 4, 2015, Hyundai officially announced the Genesis brand