"This is without a doubt the best early example of a domesticated horse
sculpture," Zarins maintains.
When researchers tested their DNA and compared it to the bones of ancient horses, they found the Przewalskis were not wild as previously believed, but feral, meaning they descended from domesticated horses
that later returned to the wild.
Genetic research, published in Science, shows that the Przewalski horse, considered to be the last wild species on Earth, is in fact a descendant of the earliest domesticated horses
Colic causes pain in a horse's stomach and is the leading cause of premature death in domesticated horses
By 2000 BCE horses were pulling chariots in Eurasia, and by 1500 BCE domesticated horses
were well ensconced in the Levant and Egypt.
Nevertheless, this standpoint was not supported by mtDNA evidence (Ishida et al., 1995; Oakenfull and Ryder, 1998; Oakenfull et al., 2000; Goto et al., 2011) and Y chromosome evidence because two fixed Y chromosome variations were detected in domesticated horses
and Prezewalski's horses (Wallner et al., 2003).