The adult Dumeril’s boa is cathemeral, whereas juveniles are mostly nocturnal. This species is an ambush predator (4), with a diet consisting mainly of terrestrial vertebrates such as mammals and birds, as well as domestic poultry (1) (4), which are all killed by constriction (4). Dumeril’s boa lacks the heat-sensitive facial pits present in many other boas, which are used to detect warm-blooded prey (4).
Dumeril’s boa is viviparous, giving birth to litters of 6 to 13 live, relatively large young (1) (4) (6). The gestation period of this species is approximately seven months (2).