Why do we have two eyes?
Show answer & explanation
Answer: To see depth and distance
Two eyes use less brain power — Wrong. Two eyes actually require MORE brain processing, not less! Your brain must combine two slightly different images into one coherent view. This extra work is worth it for depth perception.
To see depth and distance ✓ — Correct! Each eye sees from a slightly different angle. Your brain combines these views to create depth perception—judging how far away objects are. This stereoscopic vision was important for our ancestors hunting and avoiding predators!
Two eyes see more colors — Wrong. Color vision works the same with one or two eyes. Depth perception requires two viewpoints.