Human Universe S01 E05 What is our Future?

Brian concludes his exploration of our place in the Universe, asking the question what is next for the ape that went to space. He visits Northern Spain, exploring a cave which was home to our ancient ancestors. He also heads to the Arctic, to see what sets us apart from other species. Brian heads to the top of the world - Svalbard, were he unlocks the secret to our long term survival.