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Tiny Bolivian wildcat declared entirely new species

Scientists have formally identified a previously unknown feline species in Bolivia, marking the first new living cat species to be officially described in over 100 years. The diminutive tilcayo is smaller than most domestic house cats.

LSN Malaysia · 18 September 2026

Tiny Bolivian wildcat declared entirely new species

Researchers have confirmed the discovery of the tilcayo, a small wildcat native to Bolivia that represents a significant addition to the world's known feline species. The animal, which measures smaller than the average house cat, had previously gone unrecognised by the scientific community despite inhabiting the region.

The formal identification of the tilcayo marks a notable milestone in mammalian taxonomy, as it is the first new living feline species to receive official scientific description in more than a century. The discovery underscores the possibility that previously unknown species may still exist in remote and understudied regions of South America.

The confirmation of a new feline species demonstrates the ongoing importance of biological surveys and taxonomic research in regions with high biodiversity. Bolivia's varied ecosystems, ranging from tropical forests to highland regions, continue to yield discoveries that expand scientific understanding of the natural world.

The identification of the tilcayo adds to the growing body of knowledge about South American wildlife and highlights gaps in current understanding of felid diversity across the continent. Researchers emphasise the significance of continued conservation efforts and further study of the species to better understand its behaviour, habitat requirements, and ecological role.