The boa then begins the leisurely process of unfolding and stretching its jaw and swallowing the prey whole, usually headfirst. With each exhale, the snake takes up more space. But a boa doesnвЂ™t actually crush the prey and break its bones-it just squeezes tightly so that the preyвЂ™s lungs cannot expand, and it suffocates. Putting the squeeze on dinner.В A boa is aВ constrictor, meaning that it grabs its prey with its teeth and quickly wraps its coiled body around the prey and squeezes. All in all, a boa would rather avoid people than go looking for trouble! The ones that live in forests blend into the leaf litter on the ground or the bark of a tree to stay hidden. The ones that live in dry environments usually hang out in rock crevices or in underground burrows made by other wildlife. But since they donвЂ™t have to chase their food, they donвЂ™t need to travel quickly.Д«oas are found in a variety of habitats, including open woodlands, like the rainbow boa, and rocky, semi-desert scrublands, like the Egyptian sand boa. They canвЂ™t move very fast, though-only about 1 mile (1.6 kilometers) per hour on open ground. This type of movement works on the ground as well as in trees, and boas can even climb smooth surfaces. This is accomplished by stiffening the ribs to provide support, then lifting a set of ventral (on the belly) scales and moving them forward so the loose ends grip the surface, pushing the snake ahead. The straight and narrow.В Because of the large size many boas can reach, they move by traveling forward in a straight line, which is known as rectilinear progression. They are not venomous, and many do not live in jungles. ThatвЂ™s probably because these big snakes make a big impression! But boas are usually pretty quiet and calm and donвЂ™t deserve their nasty reputation. Not the bad guys.В Boas often appear in movies and stories that take place in the jungle, usually as the villain sliding menacingly through the trees. One of the biggest differences is that pythons lay eggs while boas give birth to live young, although some sand boas and the Round Island boa of Mauritius lay eggs. Pythons have one more bone in their head than boas do and some additional teeth, and pythons are found in Africa, Asia, and Australia while boas live on those continents as well as North, Central, and South America. These snakes have some things in common: they are constrictors, killing theirВ preyВ by wrapping around it and suffocating it, and they are considered primitive snakes with two lungs (most snakes have only one) and remnants of hind legs and pelvic bones.Д«ut they have differences, too. That leaves two groups, the boas and the pythons.

The first thing to note is that the anaconda is a kind of boa, not a separate type of snake. Boas, pythons, and anacondas: What's the difference?В Because boa constrictors,В reticulatedВ pythons, and anacondas are some of the biggest snakes in the world, many people get confused about which is which.

Anaconda vs boa vs python