Optical Illusion IQ Test: This illusion picture is a perfect example of our perception and assumption of hidden objects can deceive us. There is a second giraffe in this picture but only people with detective skills like Sherlock Holmes can find it.
Optical Illusion IQ Test: This illusion picture is a perfect example of how animals are able to blend in with their surroundings so well that they become almost invisible. Can you spot a spider in this illusion picture?