This image was acquired from
flickr. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
outdoor lizard animal ampquotMany lizards can drop their tails its called caudal autotomy to escape from predators. During the regeneration process mistakes probably genetic can occur and two tails can grow back instead of one. The new tails don't have vertebrae other than that they're basically as functional as the original tail