Can you spot the dog in this illusion?
This clever image features a dog very well camouflaged against its background, but once you find him, you will probably always be able to see him. He is walking away from the camera, his nose to the ground and he is wearing a dark collar.
At first our eyes may be drawn to the distinctive area of shadow in the background of the image, because the rest of the photograph is so sketchy. By focusing on the centre, however, we can soon find the dog. This illusion also makes an effective photograph.
Can you find the dog?
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