Domestication of the horse

– Background:
– Definition of domestication influences the timeline for horse domestication.
– Evidence of early horse use for meat and milk before being trained as working animals.
– Genetic studies and physical remains help estimate the latest possible date for domestication.
– Changes in size and variability indicating domestication around 2500-2000 BCE.
– Evolution of harnesses for horses in agriculture over time.

– Predecessors to the domestic horse:
– Genetic analysis shows the domestic horse descended from the true horse species.
– The true horse migrated from the Americas to Eurasia via Beringia.
– The Przewalski horse diverged from the modern horse before domestication.
– Ancient wild horses likely resembled Przewalski horses in appearance.
– Ice Age horses were hunted for meat and faced extinction due to climate changes and human hunting.

– Theories on wild horse prototypes:
– Classification based on body types indicated four wild horse prototypes.
– Selective breeding or adaptation after domestication led to different body types.
– The Tarpan subtype, Warmblood subspecies, and Draft subspecies were common wild horse prototypes.
– Competing theories on whether the prototypes were separate species or manifestations of the same species.
– The Warmblood subspecies may have contributed to the development of warmblood and heavy horses.

– Early evidence of horse domestication:
– Paleolithic cave art depicts wild horses hunted for meat.
– Clear evidence of early horse use for transport from chariot burials around 2000 BC.
– Botai culture settlements in Kazakhstan suggested as the earliest domestication location.
– Genetic evidence points to domestication in the Eurasian Steppes around 3500 BC.
– Successful spread of domesticated horses linked to genetic changes for riding suitability.

– Domestication timeline and spread of horses:
– Domestication likely occurred around 2200 BC in the Volga–Don region.
– Use of horses spread across Eurasia for transportation, agriculture, and warfare.
– Genetic changes like stronger backs and increased docility made horses more suitable for riding.
– Evidence supports domestication around 3000 BC in Ukraine and Western Kazakhstan.
– Domestication date estimates vary based on genetic studies, archaeological evidence, and cultural definitions.