Because the West Norwegian Fjords form a crossing point between climatic zones, the area is home to a rich variety of flora and fauna, with a multitude of wildflowers, fish, birds, insects and animals. The World Heritage site encompasses the deepest fjords as well as mountains over 1800 metres.
Alpine plants grow side-by-side with species that tend to thrive much further south. Rough pastures provide a habitat for rare plants that rely on grazing and hay-making to survive. Norway has a management responsibility for species such as wild reindeer, the Arctic fox, lynx, otter, lemming, the white-backed woodpecker and the harbour porpoise. There are seabirds and waders around the fjords, woodland birds in the valleys and alpine species in the mountains.