Rivers and freshwater systems are lifelines for countless species, providing essential habitats and migration routes. For some species, these waters represent not only a home but also a stage for extraordinary feats of strength and perseverance. Among these remarkable creatures are fish that return to their birthplace to spawn, overcoming immense obstacles such as waterfalls and strong currents. This challenging journey, often spanning hundreds of miles, highlights their determination and resilience. These aquatic athletes are not just a marvel of nature but also critical to the ecosystems they inhabit, contributing nutrients and energy to the river systems.

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