Axolotls, the masters of regeneration.

[Catherine]

Axolotls and known for being able to regenerate complex body parts. They are able to regenerate the thymus, an organ essential to the immune system.

https://www.scientificamerican.com/artic...tem-organ/

Axolotls can regenerate lost parts. I have seen them regenerate their gills. How are they getting enough oxygen to do that, if it is the gills that oxygenate the blood.
Regenerating the Thymus takes regeneration to a whole new level.  They have the secret of regeneration. The information for every body part is in the DNA.
Axolotls have found a way to use it. If only we could find the secret of doing this. Think of the possibilities. It would transform medicine as we know it.