Peripheral vision, also known as side vision is a part of vision that occurs outside the very center of gaze. There is a broad set of non-central points in the field of view that is included in the notion of peripheral vision.
Many ungulates (hoofed mammals) can see nearly all the way behind them due to the position of the eyes on the sides of the head. This is an evolutionary adaptation to being the prey of many predators. Horses, deer, and antelope also fall into this category.
Chameleons and sea horses are able to move each of their eyes independently - they can swivel their eyes so that they point directly backwards, and thus see behind them without turning their heads.
Owls can see behind them without turning their bodies, since their heads can swivel almost 180 degrees. This is an adaptation to the fact that they cannot move their eyes - they are so huge that there is no room inside the skull for muscles to move them. They must therefore turn their heads to change their line of sight.
Rabbit eyes are placed high and to the sides of the skull, allowing the rabbit to see nearly 360 degrees, as well as far above their head.
Parrots, like most prey animals have eyes that are widely spaced, on either side of the head. This allows for a wide range of vision (almost a 360 degree field of sight in some species.) This means these birds can see things coming at them from almost any direction and angle.
The chameleon's eyes are the most distinctive among the reptiles. Each eye has a scaly lid shaped like a cone, with only a small, round opening in the middle for the pupil.
The chameleon can rotate and focus its eyes separately to look at two different objects at the same time. This gives it a full 360-degree view around its body. When the chameleon sees prey, both eyes can focus in the same direction to get a clearer view.
In all of the examples above, animals don't just see what's in front of them, they see around them. People can learn a lot form animals. We usually look at something from our point of view, but we rarely considered the view of the person looking at us.
Try this experiment. The next time you disagree with someone, try looking at it from their perspective. Exercise your peripheral vision and see if you get a different angle? Expand your view and see how it expands your consciousness.
Do you have an opinion that could use a little expansion? How can you expand your view of your existence? What comes to mind?