A Dog Expert Explained the Differences in Vision Between Dogs and Humans 0 9

The thing is that the human retina contains three types of photoreceptors that allow for color differentiation. These photoreceptors, which have a characteristic shape, are called cones.

Thanks to the three types of cones, humans are able to perceive three color combinations — red, blue, and green. Dogs, on the other hand, have only two types of cones in their eyes, which limits their perception to two colors — yellow and blue.

However, dogs surpass humans in their ability to see in the dark. This is due to the presence of a membrane at the top of their retina that reflects incoming light. In low-light conditions, pets are able to distinguish surrounding objects well, although they see them in shades of gray.

The lower part of a dog's retina, on the contrary, absorbs light, allowing them to navigate effectively even in bright sunlight.