The truth is that many creatures are capable of renewing themselves. Newts can regrow their limbs, sea stars their arms. Zebra fish can regenerate their fins, their spinal cord, their retina, and most of their heart. This isn’t immortality but a second chance. Sometimes you don’t need to pull yourself apart to start over. Metamorphosis isn’t always a full-body thing. Since we first observed the immortal jellyfish’s capacity for resurrection in 1988, other jellyfish have revealed variations on this regenerative ability.
