The evolution of the clouded leopard

January 25, 2011 in NEWS by Suzanne Elvidge

The Sunda clouded leopard (Neofelis diardi) is the world’s newest cat. This beautiful cat lives on the islands of Borneo and Sumatra, and was recognised as a new species in 2007, when genetic analysis showed it to have separated from the mainland clouded leopard (Neofelis nebulosa) population around 1.4 million years ago. However, new research shows that it’s not as simple as that.

Borneo clouded leopard

Bornean Clouded Leopard (Neofelis diardi). Photo taken at the lower Kinabatangan River, eastern Sabah, Malaysia - www.photosbypaulo.com

The Sunda clouded leopards have lived as two separate populations on the two islands since after last Ice Age, when sea levels rose and the islands were no longer connected with glacial land bridges. Research, published in Molecular Phylogenetics and Evolution, shows that the two groups have evolved into two separate subspecies, known as Neofelis diardi borneensis (Borneo) and Neofelis diardi diardi (Sumatra). While the two groups of cats look very similar, there are differences in their skulls and teeth.

The Bornean and Sumatran sub-species are recognised by the IUCN as endangered, and the authors see this classification and recognition as ‘of utmost importance for conservation and management purposes’.