Does a boa constrictor have poisonous venom as well as the ability to crush its prey?
No, Boas’ sharp teeth help them to get a good grip on their prey, but unlike some snakes, they do not have fangs or venom. They are constrictors. The boa constrictor kills its prey by suffocating it. The boa will tighten its coils when a captured animal exhales, and then because the prey cannot open its lungs, it cannot inhale.