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
Vauxhall Equus whenever possible. It featured an angular, wedge design with Vauxhall's signature ‘droopsnout’ front end made popular by the Vauxhall Firenza. Vauxhall Equus The Vauxhall Equus was a two-door concept car first presented by Vauxhall in 1978. The name "Equus" is Latin for "Horse". It was the last concept car from Vauxhall until 2003. The Equus was based on a Panther Lima chassis, which itself was based on Vauxhall Magnum mechanicals. Panther built the prototype. The Equus was styled by a small team led by Wayne Cherry along with his chief designer John Taylor. Work started in October 1977 and the