Fun-with-ambiguous-images ❤

1. Which did you see first: a frog or a horse? There is no correct answer, of course. Perhaps if you live near a pond, you saw a frog first and if you live near a farm, you immediately recognized the horse. The next image may not be immediately obvious as any animal but there are, in fact, two depicted simultaneously. 

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2. Originally published in 1892, this German cartoon asks, "Which animals are most like each other?" The answer of course is "Rabbit and duck." The duck/rabbit is one of the most popular examples of this type of illusion.

Another widely known classic dates back to at least 1888. This elegant and humorous version was drawn by William Ely Hill in 1915. It's titled "My Wife and Mother-in-Law." 

3. Rubin's Vase utilizes the ambiguity of flat color and two-dimensional negative space but it is also possible to create ambiguous figures with illustrative lines and shading. 

4. In 1915, Danish psychologist Edgar Rubin created a more figurative ambiguous image. This now iconic illusion is known as "Rubin's Vase," though the image could also be accurately described as "Rubin's faces."

5. Here are a couple of lesser known illusions that depict two different animals in one picture. If you know who originally created them, please comment below!

6. Double face girl sketch engraving vector

7. ❤💖👌💕👏