The largest and heaviest snake to ever be discovered is the titanoboa, an extinct snake species that resembles a modern, but smaller, boa constrictor that, like its namesake, is a constrictor snake. The largest snake still alive is the reticulatus python, another constrictor snake found in southeast Asia. A common trait for constrictor snakes is being non-venomous, instead uses its immense strength granted by its sheer muscles in its body to wrap around and crush prey on a whim.