First record of interspecies grooming between Raffles’ Banded Langur and Long-tailed Macaque

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Zan Hui Lee
Andie Ang
Nadine Ruppert


In primates, observations of interspecies grooming are not uncommon, especially between species of the same genus. However, little is reported about grooming between different genera and less is discussed about its ecological significance. Here, we report the first sighting of Long-tailed Macaques grooming the Critically Endangered and rare Raffles’ Banded Langur during two independent events at Gunung Lambak Recreational Forest in Kluang, Malaysia.

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