What Loses its Tail To Save its Life

A Web-footed gecko'sbtail helps it to balance when running. Butbit is not to vitalbto the creature's survival. If a hinting bird seizes the tail, it breaks off at a special point and the gecko escapes. Ita muscles conrtract to stop the bleeding. In time, a newbtail grows on the stump.

img source: http://agustinehana.blogspot.com/2011/05/gecko.html