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New Wild Cat Species Discovered in Bolivia After 100-Year Gap

Scientists identify Leopardus tilcayo, a small spotted feline native to Bolivian cloud forests.

NBC News Science3 min

1Century-spanning discovery

Researchers have identified Leopardus tilcayo as the first new wild cat species discovered in 100 years. The small, spotted feline is native to Bolivia's Yungas region where the Andes meet the Amazon. At just 1.4 million years diverged from other tiger cats, its genetic distinctiveness qualified it as a new species. The discovery was published in Current Biology after extensive genetic testing of two specimens found at a wildlife sanctuary.

2Unique physical characteristics

The tilcayo tiger cat measures smaller than domestic cats with distinctive rounded ears and spotted fur. Local communities had recognized the animal for generations, referring to it as 'tilcayo' in indigenous languages. Researchers confirmed its unique status through genetic analysis showing 1.4 million years of separation from other Leopardus species. Unlike museum specimens of other recently split species, no tilcayo specimens existed in collections prior to this discovery.

3Accidental sanctuary finding

The discovery began when a local man mistook a tilcayo for a domestic kitten and brought it to Senda Verde Wildlife Sanctuary. Researchers noted its unusually small size and mismatched spot patterns compared to known Brazilian tiger cats. Genetic testing of this specimen and another later arrival confirmed their uniqueness. The sanctuary's location near La Paz proved crucial for accessing these cloud forest-dwelling felines.

4Conservation challenges

All five known South American tiger cat species face habitat loss from expanding development and agriculture. The tilcayo's population size remains unknown, creating urgent conservation questions. Researchers are installing camera traps in Bolivia's Yungas forest to locate more specimens. Lead researcher Nogales-Ascarrunz emphasizes the discovery strengthens arguments for protecting vulnerable ecosystems housing such unique species.

5Scientific naming approach

Researchers preserved the local indigenous name 'tilcayo' rather than assigning a new scientific designation. This honors traditional knowledge that recognized the species before Western science. The naming decision reflects growing scientific practices valuing indigenous collaboration. The team's approach contrasts with historical patterns where local names were often replaced with Latin taxonomic terms.

6Taxonomic significance

While scientists describe about 65 new mammal species annually, most result from splitting known species. The tilcayo represents a genuinely novel discovery rather than a taxonomic revision. Its recognition required comprehensive genetic analysis showing 1.4 million years of independent evolution. This marks the first completely new wild cat species identification since museum specimens established other recent feline discoveries.

7Research methodology

The team used tissue samples from two sanctuary specimens for mitochondrial DNA analysis. Genetic sequencing revealed sufficient divergence from other Leopardus species to warrant new classification. Researchers compared results against known tiger cat genomes from Brazil and other regions. The study combined genetic evidence with morphological differences in size, spots, and tail characteristics observed in the field.

8Conservation implications

The discovery highlights how little we know about cloud forest biodiversity and the urgency of habitat protection. Nogales-Ascarrunz views the tilcayo as both a scientific milestone and conservation imperative. Its small, specialized habitat makes it particularly vulnerable to environmental changes. The finding demonstrates how community partnerships can lead to significant scientific breakthroughs in understudied ecosystems.

Original article: NBC News Science — New Wild Cat Species Discovered in Bolivia After 100-Year Gap