No, unfortunately the Crested Gecko’s tail does not grow back once the tail is lost. This happens with many gecko species, but not with the Crested Gecko. In the wild it is therefore normal for many adult animals to live without a tail. In captivity we see many more tailed animals than in the wild, if you want to make sure that the tail is not damaged or thrown off, it may be advisable to keep the animals separate if you have several animals. It is also important during handling to never grab the animal by the tail, even then the animal will throw off it’s tail as part of it’s defense mechanism.