A Century in the Making: Tiny New Wild Cat Species Discovered in Bolivia

A historic discovery in the heart of South America has unveiled a previously unknown feline inhabitant of the Andes. Scientists have officially identified Leopardus tilcayo, a small, spotted wild cat found at a wildlife sanctuary in Bolivia’s Yungas region. The finding, published Thursday in the journal Current Biology, represents the first time a new living wild cat species has been named and described in more than a century.

The breakthrough began when Paola Nogales-Ascarrunz, a Bolivian biologist and National Geographic explorer, was invited by a colleague to examine an unusual-looking cat at a sanctuary. The animal, a male now approximately 10 years old, is remarkably small, weighing just three pounds and measuring 18 inches from its head to the base of its tail. Its light brown coat is adorned with distinct, leopard-like spots. “Knowing other wild cats, it was peculiar,” Nogales-Ascarrunz remarked. “He really is tiny.”

To confirm the discovery, researchers conducted a comprehensive genomic analysis, comparing the genetic instructions of the sanctuary cat against more than 30 felines from across Brazil, Peru, and Colombia. The team also utilized DNA extracted from bones and skins preserved in European and American museums to fill gaps where fresh samples were unavailable. The results revealed that Leopardus tilcayo belongs to a distinct lineage that split from its closest relatives approximately 1.4 million years ago. This marks the first such formal identification since the Uruguayan pampas cat was recognized in 1923.

The name Leopardus tilcayo honors the traditional moniker used by local communities in the tropical cloud forests of the Bolivian Andes. By choosing this name, researchers aim to preserve the cultural connection to the animal’s native habitat.

Beyond its scientific importance, the identification of the species serves as a call to action for conservationists. The high-altitude forests where the cat lives are currently under threat from accelerating deforestation and gold mining operations. Scientists hope that the official recognition of Leopardus tilcayo will help provide the necessary leverage to protect the fragile ecosystem it calls home.