Przewalski's gazelle, a rare gazelle found only in China

Rickettsia prowazekii; a species of bacteria that is the causative agent of epidemic typhus

the last truly wild horse species remaining in the world, originally found in Central Asia and first identified by the explorer [[普尔热瓦尔斯基|普爾熱瓦爾斯基|pu3 er3 re4 wa3 er3 si1 ji1]]