Salamander ancestors could regenerate limbs
Ancient amphibian fossils show sign of appendage replacement mechanism
![axolotl salamander](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/10/102315_cs_regeneration_feat_free.jpg?fit=860%2C460&ssl=1)
GROWTH STRATEGY Salamanders like this axolotl are among the few four-legged animals that can regenerate body parts.
aureapterus/iStockphoto