New species of primate identified in Indonesia
London: Scientists have discovered a new species of slow loris, a small nocturnal primate, in Borneo.
Slow loris is a small animal that is more closely related to bushbabies and lemurs than to monkeys or apes.
The new species of slow loris, named Nycticebus kayan, has gone unrecognised until now, in part due to its nocturnal lifestyle, the BBC Nature reported.
Two previously known subspecies of slow loris have also been accorded full species status.
Animals that are active by night often rely less on visual clues, and can therefore appear more similar to one another.
So the scientists had to look hard to discover the differences between the new species.
An international team of researchers, led by Professor Anna Nekaris of Oxford Brookes University in the UK, and Rachel Munds from the University of Missouri in Columbia in US, surveyed slow lorises living in the forests of Borneo and the Philippines.
They focused on studying the primates` facial markings, which take the appearance of a mask, with the eyes being covered by distinct dark patches and the heads by varying patterns.
The study found there are actually four species of slow loris in the Philippines and Borneo, each with their own, subtly different but distinct head markings.
Originally there was thought to be just a single species, called N menagensis.
Two of these new species, N bancanus and N borneanus, were previously considered subspecies of N menagensis. While, N kayan, is new to science.
"In Borneo in particular, from where three of the new species hail, this will mean that three new lorises will be added as threatened to some degree on the IUCN Red List of threatened species," said Nekaris.
"With more than 40 per cent of the world`s primates already threatened with extinction, this brings the toll even higher," Nekaris added.
Outside of Borneo and the Philippines, four other slow loris species are known, living across south and Southeast Asia.
They are the only primates with a toxic bite, secreting the toxin from glands in their elbows. Slow lorises lick this toxin, and mix it with their saliva.
They then use it when they bite, or to coat the fur of their offspring, possibly as a way to deter predators from attacking their young. The toxin is powerful enough to potentially cause fatal anaphylactic shock in people.
The research was published in the American Journal of Primatology.
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