Mind-Blowing Facts About Animal Migrations

7. Salmon: The Upstream Battle

Salmon are renowned for their arduous migration from the ocean back to their freshwater birthplaces to spawn. This journey, often against strong currents and numerous obstacles, is a testament to their determination and strength. Salmon rely on olfactory cues to navigate, using their sense of smell to identify the unique chemical signature of their natal stream. This migration is critical for the survival of the species, as it ensures genetic diversity and population replenishment. The salmon's upstream battle underscores the importance of healthy river ecosystems and the impact of human activities on these vital migration routes.