For millennia, the horse has accompanied human beings to the point of becoming an extension of their history. Domesticated, selected and transformed, it has been work tool, weapon of war and symbol of power. However, there is a horse that never crossed that threshold and that today represents the most direct link with the original horse: Przewalski’s horse also known as takhi or Mongolian wild horse. Its survival is not only a biological rarity, but one of the greatest achievements of modern conservation.
An independent lineage
For decades it was debated whether this horse was truly wild or descended from domesticated animals that had returned to the wild. The most recent genetic research has cleared up the doubt. The Przewalski horse belongs to an independent lineage, separated from the domestic horse approximately 200,000 years ago, which places it outside the domestication process that gave rise to modern breeds. Although it is related to the horses associated with the Botai culture, in modern-day Kazakhstan, these already presented traits of human handling, which reinforces the uniqueness of the takhi.
Close to disappearing
In the middle of the 20th century, this uniqueness was on the verge of disappearing. Human pressure on the steppes of Asia Centralhunting, the capture of specimens for zoos and direct competition with domestic livestock reduced their populations to a critical point. In 1967 it was observed last wild herd, It is made up of just a dozen animals, and in 1969 the last sighting of an individual in the wild was recorded. In 1996 it was declared extinct in the wild, a category that reflected the seriousness of the situation.
The salvation of Przewalski’s horse It was possible thanks to a small group of specimens kept in zoos and conservation centers, descendants of only twelve founders. Based on them, an international program of captive breeding which managed to slowly increase the population, although with very limited genetic diversity. Decades of coordinated work allowed the species to go from being on the brink of extinction to having around 1,500 copies worldwidewhich has led to its reclassification as an “endangered” species.
From a physical point of view, the Przewalski horse is clearly distinguished from the domestic horse. It is small in size, robust in structure, and has relatively short legs. Its head is large, with a convex profile unusual in modern breeds. It weighs around 350 kilos and has a bay coat with short, resistant hair, adapted to the extreme climates of the steppe, with a light muzzle and dark mane and tail. At the genetic level, has 66 chromosomes compared to 64 for the domestic horse, a key difference that underlines its own identity.
In freedom, they live in herds structured around a dominant maleaccompanied by several females and their young. The young leave the group upon reaching sexual maturity to avoid inbreeding. Its diet is strictly herbivorous and its main natural predator is the wolfwith which it has shared territory for thousands of years. Today there are stable populations in protected areas of Mongolia, China and Russiawhere the horse has recovered its ecological role as a large herbivore, contributing to the maintenance of open landscapes and the biological diversity of the steppe.
The first cloned Przewalski
Conservation of the species has taken another step in recent years with the use of cloning techniques. To combat the loss of genetic variability, historical cell lines conserved for decades have been used. In 2020 The world’s first cloned Przewalski horse was born, followed in 2023 by a second genetically identical specimen. These advances offer the possibility of reintroducing lost genes into the current population, a key factor for its future viability.
Spain has recently joined this international effort with a reintroduction project on the farm The Bellin Checa, Guadalajara, within the Alto Tajo Natural Park. Six specimens have been introduced into this enclave of high ecological value with the aim of restoring natural processes through grazing, improving biodiversity and generating opportunities linked to scientific research and ecotourism. The initiative adds to the presence of other groups of the species in the same region, consolidating a reference nucleus at the national level.
The story of the Przewalski horse is that of a species that was on the verge of disappearing and that today returns to its place in the landscape. It is not a relic of the past, but a living reminder of what can still be saved when conservation acts in time. In its archaic silhouette the memory of the wild horse survives, the one that was never domesticated and that, against all odds, has managed to survive.
