American Cheetah Found to be Puma Relative

A recent study published in *Current Biology* has re‑evaluated the evolutionary history of the extinct North American cat *Miracinonyx trumani*, long dubbed the “American cheetah” for its slender build and long front legs. The research, conducted by a team of paleontologists and geneticists, shows that *M. trumani* was more closely related to modern pumas than to the African cheetah. The authors used a combination of fossil morphology and ancient DNA analysis to place the species firmly within the Puma lineage, reshaping our understanding of its phylogenetic placement.

The study also examined dietary evidence from fossilized remains near Arctic regions, revealing that some *M. trumani* populations specialized in fish consumption rather than the high‑speed pursuit of large ungulates such as pronghorns. Isotopic signatures in bone collagen indicated a predominantly piscivorous diet, challenging the long‑held assumption that these cats were specialized hunters of fast‑running prey. This finding suggests that *M. trumani* was ecologically versatile, adapting its hunting strategies to local prey availability.

These insights underscore the importance of integrating genetic, morphological, and ecological data when reconstructing the life history of extinct species. By redefining *Miracinonyx trumani* as a puma relative with a diverse diet, the study broadens our perspective on the adaptive strategies of prehistoric felids in North America.