Horse outward similarity is an unreliable measure of relatedness. Besides the horse, there are six other species of genus "Equus" in the Equidae family. These are the ass or donkey, "Equus asinus"; the mountain zebra, "Equus zebra"; plains zebra, "Equus quagga"; Grévy's zebra, "Equus grevyi"; the kiang, "Equus kiang"; and the onager, "Equus hemionus". Horses can crossbreed with other members of their genus. The most common hybrid is the mule, a cross between a "jack" (male donkey) and a mare. A related hybrid, a hinny, is a cross between a stallion and a jenny (female donkey). Other hybrids include the zorse,
Female and Male Herm (sculpture set) Female and Male Herm (sculpture set) Female Herm and Male Herm are a set of two neoclassical marble herms in the outdoor sculpture collection of the historic Oldfields estate, located on the campus of the Indianapolis Museum of Art (IMA), in Indianapolis, Indiana. Together the herms depict either Dionysus and a Maenad or a dryad and a satyr. Each herm consists of a head and upper torso blended into a simple, squared column that tapers to a narrow width and then expands slightly outward into a more decorative, banded rectangular base. The female figure’s head leans slightly back, looking a