From the tropics to the Arctic circle, seagrasses are amongst the most widespread coastal habitats on the planet, existing in 159 countries. They are essential both for many migratory species of wild animals, as well as for climate change mitigation. Thousands of species depend on seagrasses for food, nursery grounds, and shelter.  Many others may use seagrass habitats as an important site for feeding along their migratory routes.