Leatherback sea turtles are incredible creatures, as if straight out of ancient legends. Their ancestors roamed the oceans more than 200 million years ago, during the time of the dinosaurs. They adapted to the most unsuitable and harsh conditions and learned to overcome gigantic distances from tropical regions to the Arctic Circle, guided by the internal compass and the Earth's magnetic field. They are able to withstand colder temperatures than most fish and dive deeper than whales and fur seals. But today, the fate of this resilient species largely depends on humans. Carl Safina follows the migration routes of sea turtles - from California to Canada and the most remote beaches of Papua New Guinea. Reading this book, you will go on a fascinating journey through the watery expanses of our planet, where the drama of life of turtles, swordfish, sharks, whales and people unfolds. On this journey you will meet one of the most amazing creatures inhabiting our planet, and also learn how the oceans are changing and how this affects nature and people.