Axolotls can regenerate just about any part of their body, even parts of their brain, and they readily accept transplant organs and allow these to fully develop and function.
To learn more about Axolotls, see:
14 Fun Axolotl Facts !
Axolotl Videos can be seen at ipfactly.com/axolotl
Axolotl image by LoKiLeCh cc2.5