Summary:
- The article discusses the concept of immortality in certain animal species, focusing on creatures that appear to defy the typical aging process and biological time.
- It highlights the jellyfish Turritopsis dohrnii, which can revert to a younger stage of its life cycle, essentially becoming "immortal" and avoiding death through this process.
- The article also mentions other animals, such as the hydra and certain species of lobsters and clams, that exhibit remarkable longevity and the ability to regenerate or avoid senescence, suggesting the potential for understanding the mechanisms behind biological immortality.