Research overview: cursorial adaptations in the American cheetah-like cat

This overview surveys the postcranial anatomy of Miracinonyx and the adaptations for high-speed running that earned it the cheetah-like label. Especially in Miracinonyx trumani, the limbs are elongated and lightly built, the spine flexible, and the proportions suited to rapid acceleration and sustained pursuit across open country, closely paralleling the specialized body of the living cheetah. The survey reviews studies of limb-bone structure, joint mobility, and inferred running performance, and how these features distinguish Miracinonyx from ambush predators like Smilodon and from its own more generalized relative Miracinonyx inexpectatus. It discusses what cursorial anatomy implies about the cat's hunting strategy, its likely pursuit of fleet prey such as pronghorn, and how convergence on a running body plan recurred independently in New and Old World cats.