In this second episode Dr Alice Roberts charts how our ancestors’ hunt for food has driven the way we look and behave today – from the shape of our face, to the way we see and even the way we attract the opposite sex. Clues to our ancestor’s diet can be found in some surprising places. Alice goes in search of a lion kill to find out how the tape worms in lion’s food reveal our ancestors were eating the same diet of big game 1.7 million years ago. She puts her teeth to the test to reveal that our teeth have evolved to shear through meat. But by comparing her saliva with that of chimpanzees she demonstrates that our body is as much designed to eat starch as it is to eat meat. And visiting a tribe of hunter gatherers in Tanzania, who still gather food in a similar way to our ancestors, Alice discovers that starchy tubers are crucial to survival when meat is scarce. The latest research suggests that the way the different sexes found food throughout our evolution has shaped the way we relate to each other today. The way the Hadza tribe share food and form long-term couples is thought to be the origin of love and marriage in all of us. And a fun experiment with Britain’s best skateboarders shows they take more risks when women are present – it seems men are designed to show off to attract a mate.

In this second episode Dr Alice Roberts charts how our ancestors’ hunt for food has driven the way we look and behave today – from the shape of our face, to the way we see and even the way we attract the opposite sex. Clues to our ancestor’s diet can be found in some surprising places. Alice goes in search of a lion kill to find out how the tape worms in lion’s food reveal our ancestors were eating the same diet of big game 1.7 million years ago. She puts her teeth to the test to reveal that our teeth have evolved to shear through meat. But by comparing her saliva with that of chimpanzees she demonstrates that our body is as much designed to eat starch as it is to eat meat. And visiting a tribe of hunter gatherers in Tanzania, who still gather food in a similar way to our ancestors, Alice discovers that starchy tubers are crucial to survival when meat is scarce. The latest research suggests that the way the different sexes found food throughout our evolution has shaped the way we relate to each other today. The way the Hadza tribe share food and form long-term couples is thought to be the origin of love and marriage in all of us. And a fun experiment with Britain’s best skateboarders shows they take more risks when women are present – it seems men are designed to show off to attract a mate.

In this second episode Dr Alice Roberts charts how our ancestors’ hunt for food has driven the way we look and behave today – from the shape of our face, to the way we see and even the way we attract the opposite sex. Clues to our ancestor’s diet can be found in some surprising places. Alice goes in search of a lion kill to find out how the tape worms in lion’s food reveal our ancestors were eating the same diet of big game 1.7 million years ago. She puts her teeth to the test to reveal that our teeth have evolved to shear through meat. But by comparing her saliva with that of chimpanzees she demonstrates that our body is as much designed to eat starch as it is to eat meat. And visiting a tribe of hunter gatherers in Tanzania, who still gather food in a similar way to our ancestors, Alice discovers that starchy tubers are crucial to survival when meat is scarce. The latest research suggests that the way the different sexes found food throughout our evolution has shaped the way we relate to each other today. The way the Hadza tribe share food and form long-term couples is thought to be the origin of love and marriage in all of us. And a fun experiment with Britain’s best skateboarders shows they take more risks when women are present – it seems men are designed to show off to attract a mate.

Documentary series looking at the brutal, bloody and dangerous history of surgery. Michael Mosley recounts the history of surgery through its catastrophes and successes.

Part 5: Bloody Beginnings
Presenter Michael Mosley finds out how the early days of surgery were dark and barbaric, when the surgeons knife was more likely to kill you than save you, and invasive medicine generally meant being bloodlet by leeches to within an inch of your life.

Part 4: Fixing Faces
Thought of as a modern phenomenon, it actually started over 400 years ago with a spate of botched nose jobs. Since then, surgeons have been entranced with the idea that not only could they fix the body, but could even fix our sense of self-esteem. Presenter Michael Mosley undergoes both 16th-century bondage and 21st-century botox in his journey of discovery.

Part 3: Spare Parts
These days, transplant surgery saves thousands of lives every year and almost everything, from heart to eyes, can be replaced. But in the beginning, transplants killed rather than cured, because surgeons didnt understand that they were taking on one of the most efficient killing systems we know of the human immune system.

Part 2: Bleeding Hearts
With a family history of heart problems, presenter Michael Mosley takes a personal interest in these pioneers, who teetered on the scalpel-edge between saviour and executioner. Michael has a go at heart surgery, meets a man with no heartbeat and witnesses an operation where the patient is cooled until their brain stops and has all of their blood sucked out.