Python, boa constrictor and dragon, who is the biggest?

Dragons are the biggest. Snakes are the general name of reptiles with degenerated limbs and belong to reptiles. At present, there are more than 3000 kinds of snakes in the world. They have slender bodies, degenerated limbs, no movable eyelids, no ears or even no limbs, and their bodies are covered with scales. Both pythons and pythons belong to Pythagorean family, which includes giant snakes, but also small and medium-sized snakes. Xiaolong is a god beast in ancient mythology. Aquatic animals with dragon blood (including fish and snakes) are one of the species evolved by dragons. As long as you survive the disaster, you can become a real dragon, and everyone has great power.