Why are there dolphins in Galicia?

Dolphins are common in Galician waters because this coast is productive, varied, and connected to feeding habitats created by Atlantic exposure, shelf processes, and coastal productivity. Upwelling helps supply the food web that supports fish and then marine mammals. Research groups working in Galicia report numerous cetacean species here. Sightings depend on local conditions and movement patterns; they are a visible sign of a wider food web, not a scheduled appearance.