How does a bat catch a moth in total darkness, or a dolphin pick out a fish in cloudy water? The Sonic Dark takes readers into a hidden sensory world where sound becomes sight, distance, texture, and motion. For anyone who loves animals, the brain, or the strange ingenuity of evolution, this book reveals how two very different creatures learned to map reality by listening to their own echoes.
Readers will discover how bats fire bursts of ultrasound and adjust them in the final instant before capture, how dolphins shape powerful click beams with living acoustic machinery, and how brains measure millionths of a second to turn echoes into a three-dimensional scene. Along the way, the book explores what Doppler shifts, beam control, and echo timing can tell us about perception itself—and why human echolocation offers a startling clue to the brain's flexibility.
Compact, vivid, and deeply accessible, The Sonic Dark combines physics, behavior, neuroscience, and natural history in one continuous story. It treats biosonar not as an exotic curiosity, but as a profound test case for how minds build worlds—showing what animals know in the dark, and what their abilities can teach us about our own.
