Nothing on Earth stands still. Birds travel thousands of kilometres between seasons. Fish follow routes older than memory. Seeds drift on the wind. Ocean currents carry nutrients across continents. People move, too, bringing with them knowledge, traditions, skills, and new ways of seeing the world.

Movement shapes the living world. It connects distant places, transforms environments, and leaves its mark on cities, coastlines, forests, fields, waterways, and communities. Scientists study these journeys to understand how species survive, how landscapes change, and how communities respond to shifting conditions.