The Amazing Journeys Beneath the Current: Navigating the Hidden Pathways of Fish and Birds Today
1. Introduction: The Invisible Rivers Guiding Migration Every year, countless fish and birds embark on journeys that remain hidden beneath the water’s surface and across shadowed skies—migrations shaped not by visible landmarks, but by invisible currents, subtle chemical traces, and faint acoustic echoes. These journeys, though concealed, follow precise, evolved strategies that reveal nature’s intricate…