Hinny sixty cases of foals born to female mules around the world have been documented. In contrast, according to the ADMS, there is only one known case of a female hinny doing so. Namely, in China, in 1981, a hinny mare proved fertile with a donkey sire. When the Chinese hinny was bred to a jack, she produced the so-called "Dragon Foal", which resembled a donkey with mule-like features. In Morocco, in 2002, a mule mare bred to a donkey sire produced a male foal. DNA testing revealed the foal has a mixed karyotype hybrid like the Chinese hinny offspring "Dragon
When a white horse is not a horse explains "'A white horse is not a horse', because the name diverges from the shape." Two "Zhuangzi" chapters (17 and 33) mock Gongsun Long, and another (2) combines his "zhi" 指 "attribute" and "ma" 馬 "horse" notions in the same context. To use an attribute to show that attributes are not attributes is not as good as using a nonattribute to show that attributes are not attributes. To use a horse to show that a horse is not a horse is not as good as using a non-horse to show that a horse is not a horse, Heaven and earth