On the open grasslands of Central Asia, a saiga antelope can look almost otherworldly. Its oversized, flexible nose gives the animal its distinctive profile, while its long legs are built for moving across broad, exposed steppe. The landscape can seem empty to a passerby. For saigas, it is a network of seasonal grazing grounds and routes that must remain open.
That way of life came close to disappearing. By 2005, the saiga population in Kazakhstan had fallen to about 48,000, according to the International Union for Conservation of Nature (IUCN) Red List assessment. In 2023, the species was reclassified from Critically Endangered to Near Threatened after a major recovery. Kazakhstan’s population had risen to about 1.3 million by 2022.
The rebound is one of the clearest recent examples of a large wild mammal returning in numbers. It is also a reminder that conservation is not finished when a population grows: migratory animals need connected habitat, and a recovery can be vulnerable to new threats.
A nose made for the steppe
Saigas live in the grasslands and semi-deserts of Central Asia. Their range includes Kazakhstan and parts of Russia and Uzbekistan; a separate, smaller population of the Mongolian subspecies lives in Mongolia. The animals move with the seasons, travelling between areas where they can find forage and places suitable for calving.
The unusual nose is thought to help filter dust in dry weather and warm cold air in winter. Males carry pale, translucent horns; females do not. These features are part of what makes the species so recognizable, but the saiga’s most important adaptation may be its ability to travel in large herds over distances that are difficult for other grazing animals to use.
That mobility also creates a conservation challenge. A protected area can safeguard a stretch of grassland, but a herd moving between seasonal ranges may cross roads, fences, or other barriers beyond its boundaries. A landscape that looks continuous on a map can become fragmented on the ground.
From a sharp decline to a striking rebound
Saigas have faced several pressures, including hunting for meat and the demand for males’ horns. Their numbers also fluctuate naturally, and disease can cause sudden losses. In 2015, a severe disease event killed large numbers of animals in Kazakhstan, demonstrating how quickly a population can be set back.
The more recent increase followed years of conservation work, including stronger protection and efforts to curb poaching. The Convention on the Conservation of Migratory Species of Wild Animals identifies international cooperation as important for a species that crosses national boundaries. Conservation also depends on monitoring herds, protecting habitat, and supporting enforcement in the places where saigas live and move.
The increase was large enough to change the species’ global risk category. The IUCN’s move from Critically Endangered to Near Threatened does not mean the saiga is out of danger. Rather, it reflects a substantial improvement in its overall outlook compared with the crisis years. The Red List category is a measure of extinction risk, not a guarantee that current numbers will hold.
Why open routes matter
For a migratory herd, access between grazing areas can be as important as the quality of any one pasture. Fences and infrastructure may block routes or force animals into narrower passages. Development can also divide habitat, while poaching and disease remain concerns. These pressures do not affect every saiga population in the same way.
The Mongolian saiga, for example, is a distinct subspecies and has a much smaller range than the large herds in Kazakhstan. A recovery in one part of the species’ range should not be taken as evidence that all populations are secure. Local monitoring and measures suited to each population remain essential.
Researchers and conservation teams can use counts, field observations, and tracking to understand where herds travel and where their routes are becoming difficult to use. That information can help guide decisions about infrastructure and habitat protection. It also gives governments a practical reason to coordinate: an animal that crosses a border cannot be conserved by one country acting alone.
A recovery, not an ending
The saiga’s return in Kazakhstan demonstrates that a steep decline need not be permanent. When protective measures persist and large areas of habitat remain available, populations can respond. But the animal’s dependence on movement means that conserving isolated patches may not be enough.
The next test is whether the steppe can remain connected as human uses of the land change. Keeping routes open, maintaining anti-poaching work, and watching for new disease risks are less dramatic than a headline-making population jump. They are also the kind of long-term work that can make the jump last.
For now, the sight of saigas once again moving in great numbers across Kazakhstan’s grasslands is a meaningful conservation success. It is not a promise that the species is safe; it is evidence that steady protection can give a wild mammal room to recover.
