There are rare cases in nature of biological immortality. The jellyfish Turritposis Dohrnii is considered biologically immortal because of its ability to revert from the adult Madusa stage back to the polyp stage via a process called transdifferentiation. Clonal immortality, as exhibited by the quaking aspen, tree is another intriguing case in which a single organism can achieve extraordinary life spans via regeneration through its root systems. Pando, a clone [...]