Saiga

The saiga is a critically distinctive antelope of the Eurasian steppe, instantly recognizable by its bulbous, flexible nose. It inhabits vast open grasslands and semi-deserts across Central Asia, forming large migratory herds. The species has experienced dramatic population crashes and recoveries, making it a flagship species for steppe conservation.

Kazakhstan, Russia (Kalmykia), Mongolia, with a reintroduced population in Uzbekistan

Historically ranged across the Eurasian steppe from the Carpathians to Mongolia; today restricted mainly to Kazakhstan, with smaller populations in the Russian Kalmykia region and western Mongolia, plus a reintroduced herd in Uzbekistan.

Altitude and depth

Typically found at low elevations, 0-500m, across flat steppe terrain.

Seasonal movements

Undertakes extensive seasonal migrations, moving hundreds of kilometers between summer and winter grazing grounds to avoid deep snow and exploit fresh pasture.

Open, arid steppe, semi-desert, and grassland plains with short vegetation and flat terrain suitable for long-distance movement.

Adaptations to its environment

The large, flexible proboscis warms and filters cold, dusty air in winter and summer, while long legs enable fast, sustained running (up to 80 km/h) across open terrain to escape predators and cover migratory distances.

Near Threatened (NT) after being reclassified from Critically Endangered following strong population recovery in Kazakhstan since 2015, though the species remains vulnerable to sudden mass die-offs and poaching.

Estimated population

Approximately 1.3-1.9 million individuals as of recent surveys, with an increasing trend in Kazakhstan following intensive anti-poaching efforts, though still recovering from historic crashes.

Poaching for horns (used in traditional Asian medicine) and meat, mass mortality events from bacterial disease outbreaks (e.g., Pasteurella), habitat fragmentation from infrastructure, and climate-related disease risk.

Diseases and parasites

Susceptible to periodic mass die-offs caused by Pasteurella multocida bacterial infections, exacerbated by climatic conditions; also affected by various helminth parasites.

Protected under CITES Appendix II, national hunting bans in Kazakhstan and Russia, dedicated protected areas (e.g., Altyn Dala Conservation Initiative), and international monitoring programs by IUCN Saiga specialist groups.

Recommended actions

Strengthen anti-poaching enforcement, maintain migratory corridor connectivity by limiting infrastructure barriers, continue disease surveillance, and expand transboundary cooperation between range states.

Sandy to yellowish-brown coat in summer, turning thicker and paler grey-white in winter; body is compact with thin legs and a distinctive humped back appearance due to the large nose structure.

Size

Body length approximately 100-140 cm, shoulder height 60-80 cm.

Weight

Males typically weigh 30-45 kg, females slightly less at 25-40 kg.

Distinctive features

The enormous, drooping, mobile nose (proboscis) is unique among bovids and immediately distinguishes it from all other antelope species.

Differences between males and females

Males possess semi-translucent, ridged horns 20-30 cm long, while females are hornless; males are also slightly larger and more heavily built.

Highly gregarious, forming herds ranging from a few dozen to tens of thousands during migration; males establish temporary harems during the rutting season.

When it is active

Primarily diurnal, most active during cooler morning and evening hours to avoid midday heat.

Diet

Herbivorous grazer feeding on steppe grasses, forbs, and shrubs, including some plants toxic to other herbivores, and capable of digging through snow to reach forage in winter.

Communication

Uses nasal vocalizations, snorts, and body postures during rut and alarm signaling; scent marking by males during breeding season helps establish dominance.

Interactions with other species

Natural predators include wolves and foxes (mainly on calves); competes with domestic livestock for steppe grazing resources in some areas.

Role in its ecosystem

As a keystone grazer of the steppe ecosystem, saiga help maintain grassland structure and provide a prey base for steppe predators, while their mass migrations influence nutrient cycling across the landscape.

Rut occurs in late November-December with intense male competition; gestation lasts about 140-150 days, with births concentrated in a short synchronized period in spring, typically producing twins.

Raising the young

Calves are precocial but remain hidden in vegetation for the first days of life while the mother forages nearby, then join the herd and are weaned within a few months.

Maturity and lifespan

Females can breed as early as 8 months old; lifespan in the wild is typically 6-10 years, occasionally longer in protected populations.

Classification

Mammalia > Artiodactyla > Bovidae > Saiga > Saiga tatarica

Subspecies

Saiga tatarica tatarica (Kazakhstan, Russia) and Saiga tatarica mongolica (western Mongolia, sometimes considered a separate species Saiga borealis)

Scientific synonyms

Capra tatarica (original Linnaean name), Saiga borealis (sometimes used for Mongolian population)

Recent studies

Recent research has focused on the 2015 mass die-off event that killed over 200,000 saiga in days, linking it to a combination of bacterial infection and unusual weather conditions triggering pathogen virulence.

Genome and DNA

Diploid chromosome number 2n=60; genomic studies have been used to investigate population bottlenecks and disease susceptibility following mass mortality events.

Compared with similar species

Distinguished from other steppe antelopes like the goitered gazelle by its uniquely enlarged nose and stockier build; more closely related within Bovidae to gazelles and other Caprinae-adjacent lineages despite superficial differences.

Saiga can run at speeds up to 80 km/h shortly after birth; their nose is thought to have evolved partly as a cooling and dust-filtering mechanism; they are among the fastest-recovering large mammal populations when protected.

Where and how to see it

Best observed during spring migration in the Kazakh steppe reserves such as Altyn Dala, particularly around dawn when herds are most active and visible in open terrain.

Risks to humans

No notable risk to humans.

Human uses

Horns are harvested and traded (illegally in most range states) for use in traditional medicine, and historically the species was hunted for meat and hides.

Myths and legends

In some Central Asian traditions, saiga horns have long been valued in folk and traditional medicine, contributing historically to their mythic status as a prized, almost mystical resource.