Optical Illusion Pictures: How They Trick You

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You're in the top 1% if you can spot the second animal in this optical illusion in 20 seconds – there's a trick to help

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Optical illusions: Check these brain-teasing images that trick your eyes

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Mind-scrambling illusion tricks your eyes into seeing objects move after staring for 8 seconds - what do you see?

Trick Your Eyes with These Fun April Fools' Optical Illusions

Optical Illusions: Where Science Meets Fun, Even if It Bends the Rules!, by Nicole Akers, Engage

Optical illusion tricks your brain into thinking the face is inside out

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Trick Your Eyes with These Fun April Fools' Optical Illusions