The visual cortex is a
fantastical portion of the brain, and one which is enlarged in our species to
the extent that we can use our eyes to make sense of the world around us in
amazing detail. We notice colours, shapes, motion, direction, and even three
dimensions, allowing the brain to generate a coherent percept of the visual
scene. Many primates like ourselves are extremely visual animals, and rely on
eyes not only to inform about the world around us, but to warn of impending
danger or alert about opportunity.