Most boas of this species have external traces of rudimentary hind limbs, which appear as small claws. In the skull, the quadrate bone is supported by the horizontally extended squamosal, which rests loosely on the side of the occipital region. A carnivore, Boa dumerili preys on small warm blooded animals. Rodents and tropical birds make up the greater majority of its diet. Reproduction Boa dumerili , like most members of the family Boidae, is viviparous, or live bearing, and gives birth to between 1 to 10 offspring.
Courtship precedes the actual act of mating.
In courtship, the male advances towards the female and begins to prod and nudge. The two wrap around one another, and touch cloacas. Behavior Like most snakes, boas are not social animals, and with the exception of mating, do not have much contact with each other. Boa dumerili is not aggressive by nature, and it will avoid any serious conflict by fleeing to other parts of a tree or to dense shrubbery. During the mating season, however, Boa dumerili males will battle other males for prospective mates.