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
George Africanus end of which a new memorial stone was dedicated by religious leaders. The Bishop of Kingston (Jamaica), the Rt Revd Robert Thompson, Preached at the service. In the same month, an exhibition was held at Nottingham Council House celebrating the life of Africanus, displaying documents and illustrations connected with his life in Wolverhampton and Nottingham. George Africanus George John Scipio Africanus (c. 1763 – 19 May 1834) was a West African former slave who became a successful entrepreneur in Nottingham. The early life of George Africanus is obscure. Calculating his birth year from his burial certificate, he was probably born