Most encountered are no bigger around than a man's thumb, but the Constrictor (also called a Boa, or a Boa Constrictor) may grow to the size of a Great Asp (or larger, according to legend). Like some other beasts, they can live for many years, and seem to never stop growing. For a snake, it is quite docile and slow moving, even at great size, and are kept as pets by some. The creature subdues its prey by wrapping its great bulk around and around, slowly tightening until the prey can no longer draw breath, and dies. It then swallows its meal whole. It has no venom, and only has teeth at the back of its mouth, which point inwards, making it nearly impossible to free from its clutches flesh that has begun to be swallowed.
See also: Asp