In this episode of the human senses we're going to explore our two most highly developed senses, touch and vision. How does our visual system measure up to the best eyes in the animal kingdom? We'll be testing the amazing things we do with our eyes.

In this episode of the human senses we're looking at the strange things that go on inside our ears. And how the tiny system of bony tubes in the inner ear evolved to carry out 2 separate senses, hearing and balance. We'll see what happens when you push your sense of balance right too the edge. We'll discover why acrobats fall down when the ...