The First New Cat Species Discovered in 100 Years

Researchers uncovered a previously unknown small spotted cat in Bolivia’s Yungas that they formally identify as Leopardus tilcayo after a decade of field observation and recent whole-genome analysis. The animal, discovered as a kitten in 2016 and now living in a refuge, is unusually small (about 18 inches body length and roughly 3 pounds) with distinctive large rosettes, a compact face, short rounded ears, and long whiskers. Genomic comparisons across 38 Leopardus genomes place L. tilcayo as a distinct lineage that diverged from other tiger-cat relatives roughly 1.4 million years ago - an evolutionary separation comparable to that between modern lions and extinct cave lions - and represent the first new felid species described in more than a century.

The study reframes the Leopardus genus as a species complex rather than a single widespread tiger-cat, proposing additional taxonomic splits (including a proposed subspecies Leopardus tigrinus antisuyo in Peru) and suggesting the margay may encompass multiple distinct species. Those taxonomic revisions carry immediate conservation consequences: splitting broadly defined populations into multiple species reduces each unit’s range and population size and requires separate threat assessments and potentially urgent protection. Many basic aspects of L. tilcayo’s ecology and abundance remain unknown, and authors argue that genomic methods will reveal more cryptic small-cat diversity worldwide, reshaping conservation priorities.