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Did You Know?

Under capacity

Our brains think and learn best in three dimensions and when our other senses are somehow engaged.

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Adaptation's ability

People with full vision in one eye only are a fascinating example of our mind’s ability to create optical illusions.

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Not so fast!

Our ability to see in three dimensions — stereoscopic vision — is usually only fully developed around age 6 or 7.

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A nice team

In binocular vision, the images received in both eyes are combined into a single, sharp image in the blink of an eye.

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Rod cells clustered around the outside of the retina give us the extra sensitivity we need to detect the most minute changes in light and movement for excellent peripheral vision.

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A good catcher

Half of the human brain is dedicated to visual processing, allowing us to take in a maximum of 100 letters per second when we scan a text quickly with our eyes.

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A vision for each animal

Sight has evolved differently in different species. Horses have outstanding lateral vision so they can scan the horizon quickly for predators.

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Our first sense

Of the five senses we use every day, we rely most on our sense of sight.

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