Why do humans and animals have two eyes?

Binocular vision: Having two eyes allows for binocular vision, which provides depth perception and the ability to judge distances accurately. This is essential for activities such as driving, catching objects, and navigating through complex environments.

Increased field of view: Two eyes provide a wider field of view compared to one eye, allowing for better peripheral vision and the ability to detect objects and potential dangers from a wider range of angles.

Redundancy: Having two eyes provides redundancy in the visual system. If one eye is injured or impaired, the other eye can still provide vision and maintain some level of visual function.

Evolutionary advantage: Binocular vision and depth perception have provided significant evolutionary advantages to humans and animals, enabling them to better interact with their environment, find food, avoid predators, and navigate their surroundings more effectively.

Stereopsis: Stereoscopic vision, made possible by two eyes, allows for the perception of depth and the ability to see objects in three dimensions. This is crucial for tasks such as judging distances, reaching for objects, and understanding spatial relationships.