This optical illusion is leaving the internet divided because no one can see what is hidden within

It only feels like yesterday that the internet broke over a picture of a dress, with some claiming it to be blue and black while others insisted it was white and gold. It's 2022, and it looks like we're right back to square one, because here's another optical illusion that's leaving the internet divided.

If the caption of this image is to be believed, right-brained people are likely to see a fish, while left-brained people are more likely to see a mermaid.

However, people were quick to note that the illusion is not new. A version of the drawing without the colorful background has been around for a long time and is referenced in a 2010 study published in the British Journal of Developmental Psychology about children with autism. In the study, the children were tasked with determining whether a similar line image depicted a donkey or a seal.

Here's what people had to say about the optical illusion that left people scratching their heads