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
Julius Africanus is a persistent belief in some quarters that Africanus was actually an African. However, being the son of a Gallic chief he was a member of a Celtic tribe. This confusion probably arises from an incorrect belief that the Roman cognomen Africanus means from Africa (i.e. born in Africa) rather than the correct meaning of famous relation to Africa. The name Africanus originated with Scipio Africanus, who defeated Carthage (in North Africa) during the Second Punic War. Julius Africanus Julius Africanus was a celebrated orator in the reign of Nero, and seems to have been the son of the Julius