Adventurer Ben Fogle meets more people who have turned their backs on the trappings of Western society and set up home in some of the most isolated locations on Earth.
Who are we? And where did we come from? We get transported back to an ancient time when giant beasts roamed the planet and there were 4 different species of Human existing at the same time.
From a primate that's no bigger than a mouse, to a chameleon that can fit on your fingertip, the natural world is full of fantastically small animals. This programme reveals the fascinating secrets behind these miniature marvels and shows that they're not the underdogs you might think they are.
The popular long-running medical show is back to go behind the headlines once again and provide the answers to health questions. In series seven, the team are joined by two new presenters, as they look for the latest research, and conduct major experiments with the help of hundreds of volunteers.
From the smallest creature under the microscope to the limitless expanses of space, BBC Earth brings viewers face-to-face with heart-pounding action, mind-blowing ideas and the wonder of being human.