Every animal has a primary sense that it relies on more than its other senses. You can usually tell what an animal’s main sensory reliance is based on how large that main sensory organ is on their body. Take a look at a cat’s skull and how much of it is taken up by the eye sockets. Look at a dog’s snout; a bat’s ears. An animal’s core sense is built up in order to give it the best possible chance of survival. Humans are visual animals, and we rely most heavily on our sense of sight to survive.
Motion is a heightened portion of our sense of sight. This is mostly because as we evolved as a species, the introduction of movement in our environment meant either danger or food. On an instinctual level, noticing movement in our immediate environment was...