Lizards have tails which they can cut down themselves to keep safe from predators. Such process is called autonomy and, later, such cut tails can grow too. When a lizard’s tail is cut, you can never see its bleeding because the blood vessel automatically minimizes and stops bleeding. On being cut, a lizard’s tail wriggles around the floor; it seems that it will be generated again. So, there is no loss to the lizard. But in actual, a lizard keeps its fat stored in its tail. So, the loss of the tail can cause a lizard to feel deficiency.
A new tail takes around 9 weeks to generate. In the beginning, you can see just a dark stump of lymph vessels. Sometimes, the tail does not cut down completely. Later, it heals. In such a situation, a lizard can have two or three tails. Lizards are able to grow new tails for them through limb generation.
