For most vertebrates, losing a limb is permanent, but a lucky few species—such as salamanders and tadpoles—have the ability to completely regrow complex body parts. Understanding the molecular mechanisms underlying this phenomenon may be the key to developing new kinds of regenerative medicine, giving us the power to heal spinal cord injuries and other severely damaged tissues.
Click here for original story, Tail regeneration in lungfish provides insight into evolution of limb regrowth
Source: Phys.org