The black muntjac is a very wary animal, which, along with its relatively inaccessible habitat, makes it difficult to study in the wild and thus limited information is available on its biology (6). It is typically solitary, although may be found in small groups (4) (6). It feeds on leaves, twigs, and fruit, which are generally plucked from bushes and low hanging branches, as well as grasses and herbs (1) (2) (4).
The black muntjac gives birth to a single young, known as a fawn, after a gestation period of 210 days (1) (2). The female typically gives birth in dense forest undergrowth, where the young remains hidden until they are capable of moving about with the mother (5). Some females will conceive again whilst still feeding the young fawn (1) (2).