It's because they're all juvenile though. They actually don't produce a hormone needed for proper growth and that's why they look the way they do. They are supposed to go through another stage of growth, and their appearance and existence is because of a genetic birth defect.
So would it be possible to make one grow up by giving them hormones? And what would it look like?
They can force them to change with a shot of iodine and they apparently look like Tiger Salamanders.
https://gizmodo.com/scientists-show-that-peter-pan-grows-up-with-a-shot-of-5826750
Teeny tiny axolotl
There is really not a lotl
Of you. Not a jot or tittle
So I'll call you axolitl
Really cool, but I feel bad for the little guys that are living in tanks and probably getting their limbs cut off for us to study.