Despite modern humans living longer today than ever before, some animals have lifespans we cannot imagine and physiological gifts that feel closer to magic than reality. Here molecular biologist Nicklas Brendborg introduces a tiny jellyfish that can begin its life cycle over again, a Greenland shark nearly 400 years old, and naked-mole rats that thrive when exposed to radiation. Along the way, we meet a man who fasted for over a year, a woman who edited her own DNA, and redwoods that survive thousands of years.