Adam Hopkins

A teenage girl goes missing from her home in Bristol, prompting a huge search across the city and a social media campaign to find her. As days pass fears grow that she may have come to harm. As the police investigation progresses shocking evidence is discovered, pointing towards a family member for her murder but no one could have imagined what happened next.

We've been doing it since we first walked the Earth. It gives us pleasure and it gives us life. But how much do you know about how sex works? Now, National Geographic Channel takes a fascinating look at one of the world's most popular pastimes: sex. Through gripping real-life stories and simulations, we journey from first times to playing the field, and all the way to humankind's ultimate goal, procreation. We'll learn anything and everything you've ever wondered about sex.

A teenage girl goes missing from her home in Bristol, prompting a huge search across the city and a social media campaign to find her. As days pass fears grow that she may have come to harm. As the police investigation progresses shocking evidence is discovered, pointing towards a family member for her murder but no one could have imagined what happened next.

We've been doing it since we first walked the Earth. It gives us pleasure and it gives us life. But how much do you know about how sex works? Now, National Geographic Channel takes a fascinating look at one of the world's most popular pastimes: sex. Through gripping real-life stories and simulations, we journey from first times to playing the field, and all the way to humankind's ultimate goal, procreation. We'll learn anything and everything you've ever wondered about sex.