Boas are a family of non-venomous snakes known as Boidae. They are found in a variety of habitats, including rainforests, deserts, and grasslands across the Americas, Africa, and some islands. Boas are characterized by their large size, with some species growing over 10 feet long. They are constrictors, meaning they kill their prey by wrapping around it and suffocating it. These snakes have a distinctive appearance, often featuring beautiful patterns and colors that help them blend into their surroundings. Boas are also known for their ability to give birth to live young, unlike many other snakes that lay eggs. Some popular species include the red-tailed boa and the green tree boa.