[3] The Angolan talapoin is limited to dense evergreen vegetation on the banks of rivers that often flow through miombo (Brachystegia) woodland or, as that is cleared, areas under cultivation.

They are proficient swimmers and a common defensive strategy is to sleep on branches overhanging rivers so that they can dive into the water to escape from danger.

At night the group is gathered together in trees close to the water, splitting up into smaller sub-groups in the morning so that they can spread out to forage.

Angolan talapoins do not show any territoriality, which is unlike their close relatives the guenons.

The fluctuations in climate since the last glaciation have probably reinforced this species' primary adaptation to 'strip living' as longer dry seasons and less extensive flooding under the generally cooler and drier climate that now dominates outside the rainforest seems to have favoured more terrestrial habits than are apparent in the Gabon talapoin.