Duck Rabbit Illusion By Jacob Braaten
An ambiguous figure in which the brain switches between seeing a rabbit and a duck. Which when you look at the image in different ways you see different images. You can also see both because of the different shading with a pencil. You will more often see something you normally see in real life.
"Optical Illusions - Duck Rabbit Illusion." Optical Illusions. N.p., n.d. Web. 18 Mar. 2015
"Rabbit-Duck Illusion." -- from Wolfram MathWorld. N.p., n.d. Web. 18 Mar. 2015