In May 2015, conservationists watching the Betpak-Dala saiga antelope population in Kazakhstan witnessed something almost incomprehensible: in the space of three weeks, more than 200,000 animals died. Entire herds collapsed. Healthy animals were dead within hours of showing symptoms. The cause — a bacterial infection that had previously been harmless — appeared to have become lethal due to unusual weather conditions.
The die-off killed roughly 60% of the world's entire saiga population in a month.
By 2015, the global saiga population had already fallen to around 50,000. From the great herds of the Soviet-era steppes — populations once counted in millions — they had been reduced to a species genuinely at risk of extinction within years.
The Recovery
What happened next is one of conservation's most remarkable stories of the decade.
Kazakhstan's government, working with international conservation organisations including the Wildlife Conservation Society, WWF, and the Frankfurt Zoological Society, launched a sustained anti-poaching effort. The saiga horn trade — which had driven the initial collapse from Soviet-era millions to post-Soviet tens of thousands — was actively suppressed. Seasonal movement corridors were identified and protected. And crucially, the saigas themselves were given time.
Saigas can reproduce rapidly when conditions allow: females typically give birth to twins, and the species has evolved to recover quickly from population crashes — it has survived on the Eurasian steppe for over 3 million years, through ice ages and human eras alike.
Nearly 4 Million
By 2025, Kazakhstan's saiga population had climbed to nearly 4 million animals — the highest count in decades. The IUCN, which had listed the species as Critically Endangered, formally upgraded its status to Near Threatened: still at risk, but no longer facing imminent extinction.
It is a transformation almost without parallel in conservation. From 50,000 animals in the mid-2010s to close to 4 million a decade later. From herds so depleted they could barely sustain themselves, to numbers sufficient to restore their ecological role as the great grazers of the Central Asian steppe.
The Bigger Picture
The saiga recovery is not complete. Populations outside Kazakhstan — in Russia, Mongolia, and Uzbekistan — remain small and vulnerable. Disease risk persists; another mass die-off remains possible. The horn trade continues in some markets.
But the Kazakh numbers tell a story that conservation rarely gets to tell: sometimes, if you stop the killing and protect the habitat, nature will do the rest. Sometimes the most endangered animals are also the most resilient, if given the chance.
Sources: IUCN Red List · Wildlife Conservation Society Kazakhstan · WWF Steppe Programme · Convention on Migratory Species · Nature 2025
