New Spotted Wild Cat Species Discovered in Bolivia, With Only One Known Living Member

A spotted wild cat from the forests of Bolivia has been officially confirmed as a brand-new species to science. The small feline, roughly the size of a domestic house cat, managed to evade scientific detection for years because it shares remarkably similar spots and stripes with other closely related wild cats. However, recent DNA studies have revealed that the cat belongs in a class of its own, shedding light on the vast amount of biodiversity that still remains undocumented among the world's most elusive mammals.

The newly described species has been named *Leopardus tilcayo*, and it is commonly referred to by researchers using the nickname Tigrino. According to Paola Nogales-Ascarrunz of the Universidad Mayor de San Andrés in La Paz, Bolivia, finding a new mammal species in forest environments demonstrates that major wildlife discoveries do not always require expeditions to remote volcanoes, isolated islands, or the deep sea.

The scientific breakthrough was triggered by a single 10-year-old cat currently living in a wildlife sanctuary in Bolivia. The animal was originally found in the forest as a kitten by a local resident who initially mistook it for a domestic pet. As the animal matured, its wild behavior made it clear that it was not a house cat. Dr. Nogales-Ascarrunz, while volunteering at the sanctuary, noticed that the individual looked unusual and recalled reports of other small wild cats in the dense forests of Bolivia's Yungas region that had never been scientifically investigated.

To unravel the mystery, Dr. Nogales-Ascarrunz collaborated with an international team of researchers to examine the family history of tiger cats. The investigation utilized DNA samples gathered from both living animals and museum specimens. Eduardo Eizirik, a conservation geneticist at the Pontifical Catholic University of Rio Grande do Sul in Brazil, noted that the animal had remained hidden because there were so few records, photographs, or museum specimens, and effectively "nobody was looking."

The resulting study, published in the journal Current Biology, brought forth additional surprises regarding the broader taxonomy of tiger cats. The findings suggest that there are actually five tiger cat species rather than the previously accepted three, which includes the newly described Tilcaya cat of Bolivia. Tiger cats are a group of small wild cats found across Central and South America, ranging from Costa Rica down to Bolivia and Argentina. Because they look so similar, even experienced field researchers and experts frequently struggle to tell them apart.

Andrew Kitchener, a mammal expert at National Museums, Scotland, who was not involved in the study, described small spotted South American tiger cats as a "taxonomic nightmare." He explained that because these animals look alike and are poorly represented in museum collections, researchers are only now beginning to understand how to distinguish the species as genetics uncover new details.

The discovery also carries broader implications for the global classification of the cat family. All wild and domestic felines belong to the biological family Felidae, which encompasses every living cat species from small pets to massive apex predators like lions, leopards, and tigers. While there are officially 41 recognized feline species, this latest discovery—alongside findings indicating multiple tiger cat species—could expand the total count of recognized cat species to 44 or 45.

However, identifying the newly recognized cat is only the initial step toward protecting it. Dr. Caroline Sartor of the Wildlife Conservation Research Unit at the University of Oxford, who is a co-researcher on the study, emphasized that the discovery is vital for conservation because it is impossible to protect a species without knowing what it exists or where it lives. She noted that finding an animal similar in size to a domestic cat highlights how much hidden biodiversity remains in less-studied global regions.

Existing tiger cat species are generally considered vulnerable to extinction due to pressing environmental threats, including deforestation, ongoing habitat loss, and illegal hunting. The newly identified *Leopardus tilcayo* was previously missing from formal conservation assessments, making further field research and population surveys an urgent priority for scientists working to preserve South America's rich forest ecosystems.