Do you see a rabbit or duck? What your answer says about you

At first glance, what do you see?  A rabbit, duck or both?

The drawing was published in a German magazine around 1892.

Those who see both animals in the drawing quickly have a more creative brain. That's according to an 1899 study by psychologist Dr. Joseph Jastrow, who often worked with optical illusions. Results of the study showed that people who can see both animals are able to come up with five unusual uses for an everyday item. People who cannot flip between the animals or have trouble flipping could only come up with two unexpected uses for that same everyday item.

So why is this 1890s image coming up now? We're not sure. It just recently emerged on social media, but it's always interesting to find out what others see.