Balloon-Nose Saiga: An Ice Age Adaptation Persists Today
Saiga antelopes rely on their large, inflatable nasal passages to filter dust, humidify cold air, and regulate temperature, a key adaptation for surviving dusty steppe environments since the Ice Age. Despite severe poaching and a 2015 mass die-off, conservation efforts helped their numbers rebound to about two million, though the species remains near threatened. The nose may also aid scent detection and vocal communication during mating and calf-rearing.