Europe is the second smallest continent, yet is incredibly diverse. It's temperatures range from 40 degrees to minus 40 degrees across several ecoregions. It is home to the most northerly feline species as well as the only spider to live entirely underwater. Its hectares of forests are on the increase and it boasts off shore islands deep within the Arctic Circle and far out in the Atlantic Ocean. Europe's Great Wilderness is a three part series exploring its wildlife and the mosaic of habitats in which they live: Life Below Zero- discovering the life that the arctic supports, characterised by hardiness and an amazing ability to survive at the very edge of the world. Green Heart - charting life across the seasons in Europe’s most ancient and enigmatic forests. Living Waters - exploring the major waterways that provide home to a myriad of life forms.