Boidae

About the Boidae family

Boas are stout, muscular constrictors that kill prey by coiling and tightening. The family includes the giant anacondas and the boa constrictor, as well as many smaller tree and sand boas. Unlike pythons, boas bear live young rather than laying eggs.

Where they live

Mainly the Americas, with additional boas in Madagascar, the Pacific, and parts of Africa and Asia.

How to recognize one

Heavy body, smooth scales, and (in many species) heat-sensing pits along the lips. No rattle and no fangs.

Danger to people

Non-venomous and not dangerous to people. Large individuals are strong and can bite defensively, but they are not a venom threat.