Arctic tern: Nature’s longest traveller and the secrets behind its epic journey

Arctic terns undertake an astonishing 70,000 km migration, relying on ocean ‘refuelling stations’ for sustenance. New research reveals these birds meticulously follow food-rich upwelling zones across the Pacific, a ‘stepping-stone’ strategy timed with seasonal ocean productivity. This incredible journey highlights their dependence on healthy marine ecosystems, making them vital indicators of ocean health.