According to an article in The Times by Nathaniel Rich, Hydrozoans are small invertebrates that, depending on their stage in the life cycle, resemble either a jellyfish or a soft coral. In a paper titled “Reversing the Life Cycle,” it was pointed out that this particular species — at any stage of its development — could transform itself back to a polyp, the organism’s earliest stage of life, “thus escaping death and achieving potential immortality.” Christian Sommer, marine-biologist has found that this species refuses to die. It appears to age in reverse, growing younger and younger until it reaches its earliest stage of development, at which point it began its life cycle anew. So ladies and gentlemen, do not yet give up the desire to live indefinitely, because maybe we will figure out a way to live forever.
My Life In Bits And Pieces in Massachusetts.