Model systems for regeneration: .

Understanding how to promote organ and appendage regeneration is a key goal of regenerative medicine. The frog, , can achieve both scar-free healing and tissue regeneration during its larval stages, although it predominantly loses these abilities during metamorphosis and adulthood. This transient regenerative capacity, alongside their close evolutionary relationship with humans, makes an attractive model to uncover the mechanisms underlying functional regeneration. Here, we present an overview of as a key model organism for regeneration research and highlight how studies of have led to new insights into the mechanisms governing regeneration.