Ever since it was published in 1892, the rabbit-duck illusion has been perplexing viewers with its remarkable ability to shapeshift. Does it show a rabbit and then a duck, a duck and then a rabbit, ...

Remember the duck-rabbit illusion? Source: Wikipedia Commons It can be seen both as a duck and as a rabbit. If you first see it as a duck and later notice that it can also be seen as a rabbit, your ...

Is this a rabbit or a duck? The answer you give to this classic optical illusion says a lot about your brain, psychologists claim. It first appeared in a German magazine in 1892 under the title ...

A drawing from 1899 is sparking debate on social media and could shed light on how your brain works. In the following drawing, do you see a duck or a rabbit? Can you see both animals? According to The ...