Question

why we have two eyes​

Answer 1

Humans have two eyes. But despite having binocular (two-eyed) vision, we see only one image. This is thanks to our brains working hard to make sense of the input coming through both eyes. Because human eyes are close together on the front of our heads, both eyes see more or less the same thing at the same time.

Answer 2

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Humans have two eyes, but we only see one image. We use our eyes in synergy (together) to gather information about our surroundings. Binocular (or two-eyed) vision has several advantages, one of which is the ability to see the world in three dimensions.