🌅 The First New Cat in More than a Century

SOURCE

Lescroart et al. (2026)

WHAT TO KNOW

• A diminutive light brown feline originally thought to be part of the tiger cat family is actually the first newly identified cat species in more than a century. The cat, dubbed Leopardus tilcayo by the Bolivian researchers who identified it, measures around 18 inches long and weighs roughly three pounds, making it smaller than most domestic house cats. Its fur is dotted with large, irregularly shaped rosettes similar those found on leopards, helping L. tilcayo blend in with the lush, cloud-covered Yungas forest in which it’s found.

WHY IT MATTERS

• The newly identified felid—i.e., the family of mammals we call cats—is the first new cat species identified since the pampas cat in 1923. Genetic analysis revealed L. tilcayo split off from its tiger cat lineage around 1.4 million years ago, during the Early Pleistocene, a period of significant climate and environmental upheaval. It’s unclear how many individual tilcayos are out there, though the researchers say their study should be the catalyst for future conservation and identification work.

CONNECT THE DOTS

• Experts say the discovery of a new mammal, particularly a cat, whose genus has been extensively studied, is rare, and identifying an entirely new species—rather than a variation of a known species—is even more exceptional. The discovery of new species is also critical for conservation, as their emergence can lead to increased threats from things like deforestation and disease. It also leads to the threat of habitat fragmentation, as a species’ range and population becomes divided among several distinct species.