For us humans, seeing is child's play. But our eyes and our brain have to work hard to get the images into our heads. Unnoticed by us, special nerve cells exchange messages in a secret language. How does this happen? This is still a mystery even to scientists.

Some animals can see even better than we can. Over the course of many millennia, they have adapted their sense of sight to their way of life. Birds of prey, as flying hunters, can easily recognise the rapid movements of a small mouse from high up in the air. And bees see colour patterns on flowers that only appear white to us. But how can we determine how well an animal can see? After all, you can't ask a bee what colour it sees a flower to be. Or maybe you can?

You'll find out in the lecture.