Barn owls have simpler brains than primates, but they can process information about things moving in their environment in a similarly complex way. Owl eyes are round, but not spherical. These immobile, tubular structures sit on the front of an owl's face like a pair of built-in binoculars. They allow the birds to focus in on prey and see in three dimensions, kind of like humans — except we don't have to turn our whole heads to spot a slice of pizza beside us.