Odin the flying, eight-legged steed Sleipnir across the sky and into the underworld. Odin is the son of Bestla and Borr and has two brothers, Vili and Vé. Odin is attested as having many sons, most famously the gods Thor (with ) and (with ), and is known by hundreds of names. In these texts, he frequently seeks greater knowledge, at times in disguise (most famously by obtaining the Mead of Poetry), makes wagers with his wife Frigg over the outcome of exploits, and takes part in both the creation of the world by way of slaying the primordial being and
Domestication of the horse as efficient at utilizing the full strength of the animals as the later-invented padded horse collar that arose several millennia later. A 2005 study analyzed the mitochondrial DNA (mtDNA) of a worldwide range of equids, from 53,000-year-old fossils to contemporary horses. Their analysis placed all equids into a single clade, or group with a single common ancestor, consisting of three genetically divergent species: "Hippidion", the New World stilt-legged horse, and the true horse. The true horse, which ranged from western Europe to eastern Beringia, included prehistoric horses and the Przewalski's Horse, as well as what is now the modern domestic