Hybrid (biology) are the mule, a cross between a female horse and a male donkey, and the hinny, a cross between a female donkey and a male horse. Pairs of complementary types like the mule and hinny are called reciprocal hybrids. Among many other mammal crosses are hybrid camels, crosses between a bactrian camel and a dromedary. The first known instance of hybrid speciation in marine mammals was discovered in 2014. The clymene dolphin ("Stenella clymene") is a hybrid of two Atlantic species, the spinner and striped dolphins. Cagebird breeders sometimes breed bird hybrids known as mules between species of finch, such
The Adventures of a Donkey Monthly Review" of 1752-1825 said it was an 'agreeable little book' which creates and interest for the promotion of humanity. The 1806-1819 edition of "The Literary Panorama" thought it should be regarded favourably due to Argus' contribution to donkey welfare by introducing children to the mishaps which can occur from maltreatment, stating, '…[Argus'] imagination has exercised itself in favour of the rising generation.' And, 'it is an act of benevolence to call youthful attention to their [donkeys] necessities, and to contribute in a proper degree to their comforts by good usage.' Other publications, such as the 1833 edition of "The