Horse breed been produced. Such restrictions have led to legal challenges in the United States, sometime based on state law and sometimes based on antitrust laws. Horses can crossbreed with other equine species to produce hybrids. These hybrid types are not breeds, but they resemble breeds in that crosses between certain horse breeds and other equine species produce characteristic offspring. The most common hybrid is the mule, a cross between a "jack" (male donkey) and a mare. A related hybrid, the hinny, is a cross between a stallion and a jenny (female donkey). Most other hybrids involve the zebra (see Zebroid). With
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