"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:
That’s a great idea. A banana that regenerates when you cut it in half.
First step, give the banana a mouth
second step…I’ll be in my bunk.