The cat has a wide field of vision, and both eyes have both common and separate fields of vision. There is no sense of distance in a separate field of vision, but there is a sense of distance in a common field of vision.

The individual field of view of each cat is above 150 degrees, the common field of view of both eyes is above 200 degrees, while the human field of view is only about 100 degrees. Cats can only see things that change in light. If the light does not change, cats can't see anything. Therefore, when cats look at things, they often have to turn their eyes slightly to make the scenery in front of them move so that they can see clearly.

And cats have a much worse ability to distinguish colors than humans. It can be said that cats are almost color blind... (Because cats are carnivorous, in ancient times, they mainly add dynamic vision to catch prey. Human ancestors were vegetarian, but later they evolved into omnivorous. When vegetarian, skill points were added to color recognition fruits.

So a piece of feces, or a can, thrown in front of the cat, motionless, they mainly discovered them with smell... Of course, they have to smell to determine the location!

Then after determining the location, as a carnivorous animal's special behavior pattern, is to bury the stool. Because their feces are dirty and smelly, they need to be buried, or go far from the animal's nest to excrete. After the feces of the cubs pollute the animal's nest, the female beast will eat the feces to keep the residence clean...