"In a study published in Nature Communications, the researchers reveal an elegant molecular mechanism that acts like a GPS coordinate system for regenerating cells… the puzzle was how the cells in the regenerating limb-stump controlled their levels so precisely to know exactly where they were on the axis from shoulder to hand.”
The Nature paper:
Axolotls actually have unusally low cancer rates despite their regenerative abilities - they’ve evolved special tumor supressor genes that work alongside their regeneration pathways, wich is why researchers are studying both mechanisms together!