Research overview: the king cheetah from cryptic species to single gene

First described in the early twentieth century from southern Africa, the king cheetah's bold blotches and stripes led some naturalists to propose it as a distinct species, Acinonyx rex. This overview traces how breeding records, then molecular genetics, demonstrated that king cheetahs arise from a recessive allele segregating within ordinary cheetah populations, and how the causal Taqpep variant was ultimately identified. It discusses the rarity of the phenotype in the wild, its concentration in certain regions, and what the case illustrates about how striking morphological variants can be misclassified as taxa before genetic tools reveal their true basis.