The Magnetic Sense

Every year, billions of creatures perform miraculous journeys guided by a force humans cannot feel. How does a sea turtle find a specific beach across an ocean, or a robin return to the same garden after migrating thousands of miles? The Magnetic Sense unveils the invisible web of Earth's magnetic field and the biological machinery that decodes it. This book is essential reading for nature enthusiasts and anyone fascinated by the hidden sensory worlds of the animal kingdom.
Journey into the microscopic realm where quantum physics meets biology. You will discover how a chemical reaction in a bird's eye might allow it to literally see magnetic north and how tiny iron crystals act as internal GPS units. The text explores the clever experiments that revealed these secrets, from magnetic coils to pulse tests, while addressing how modern electromagnetic noise threatens to scramble these delicate evolutionary maps.
Written with the clarity characteristic of the Library of Unconventional Ideas, this volume synthesizes decades of competing theories into a coherent narrative. It moves beyond simple facts to explore the scientific process itself, offering a sharp, accessible guide to one of biology's most enduring mysteries. It is a concise roadmap to the invisible forces shaping life on Earth.