[1] Red forest duikers have a body length of up to 1 m (3.3 ft), a typical shoulder height of 43 cm (17 in), and an average mass of 14 kg (31 lb).

[4] These longer hind legs are in a crouched position, which serves as an advantage when the duiker senses danger and needs to flee by allowing the individual to leap quickly into nearby bush.

[5][6] The cry of red forest duikers is rather distinctive, loud, and penetrating, sounding somewhere between a snort and a whistle.

[4] A duiker will practice this scent marking by rubbing its face on grass, twigs, bark or other surfaces to indicate its territorial boundaries.

[4] Red forest duikers browse on leaves, flowers, and fruits that have fallen from trees as well as low-growing shrubs.

[6] The red forest duiker's biggest threat is the clearing of its natural habitat, either for agriculture or human habitation.

[8] Despite the decreasing population trends, the red forest duiker retains a status of Least Concern by the IUCN.

The red forest duiker has an extraordinary jumping ability when compared to other ungulates, easily clearing 1.3 meter tall nets.