In Human Universe episode 5: Professor Brian Cox concludes his exploration of our place in the universe by asking what next for the ape that went to space. In northern Spain, he begins in a cave that was once home to our distant ancestors. Here, he discovers some of the earliest art in the universe - a child's hand painted onto the wall that has remained intact for around 40,000 years. That child - if raised today - would be just as bright and just as capable as any modern child. Yet its vision of the future would be very different to ours.