the.com/regeneration
Biology's undo button, pressed by creatures who never learned to quit.
means The process by which an organism regrows lost or damaged body parts, tissues, or cells.
from From Latin regenerare, to bring forth again, stitching re- (again) onto generare (to produce) — literally a second genesis.
Axolotl flexRegrows limbs, spine, even heart tissue.
Liver loopholeHuman livers regrow to full size after loss.
Starfish trickOne severed arm can become a whole animal.
Hydra cheatCut it apart, each piece rebuilds itself.