The common palm civet (Paradoxurus hermaphroditus) is the nocturnal mammal most frequently encountered by visitors at Niah National Park. A medium-sized carnivore roughly the size of a domestic cat — stocky, short-legged, with a long tail and coarse grey-brown fur marked with dark spots — it forages through the canopy and understorey of Niah's forest each night, covering several kilometres in search of fruit, small vertebrates, and invertebrates.
Palm civets are famous in an unexpected context: kopi luwak, the world's most expensive coffee, is produced from coffee cherries that have passed through a civet's digestive tract. The fermentation process during digestion alters the bean's protein structure, producing a smoother, less bitter flavour profile. While this has made the palm civet famous, it has also led to a cruel captive-farming industry across Southeast Asia. Niah's palm civets are wild and free, foraging on the natural fruit crop of the forest rather than force-fed coffee cherries.
At Niah, the best time to see palm civets is in the two hours after dark on the path between the park hostel and the boardwalk entrance. The lit areas around the hostel attract moths and beetles, which in turn attract civets that patrol the canopy edge. A red-filtered torch is useful — white light startles them but red light does not. They are most visible when moving between fruiting trees, when their body silhouette against the lighter sky makes them easy to spot from below.
The common palm civet is classified as Least Concern globally — it is highly adaptable and survives well in secondary and even urban forest. At Niah, where the forest is primary and undisturbed, the civet population is robust. They share the nocturnal canopy with other carnivores including the Malay civet (Viverra tangalunga), the binturong, and — in the deeper forest sections — the Sunda clouded leopard. Watching the bat exodus at dusk and then waiting on the hostel veranda for civets is the standard two-part nocturnal programme at Niah.