Not a mermaid or fish but JK Rowling saw this in viral optical illusion. See tweet

This optical illusion can actually tell you whether you are left-brained or right-brained. The optical illusion has also piqued Harry Potter author JK Rowling’s interest.

There are a plethora of quizzes and optical illusions available on the internet that can tickle the fancy of netizens in no time. They are extremely fun to solve and are super interesting too. We have one such optical illusion that can actually tell you whether you are left-brained or right-brained. The optical illusion has also piqued Harry Potter author JK Rowling’s interest. She took to Twitter to share the illustration with her fans and followers and also revealed what she actually saw.

Several social media users weighed in on the illusion after it surfaced on social media. "If you're right-brained, you'll see a fish. If you're left-brained, you'll see a mermaid," read the caption for the illustration.

While some users wrote they saw a fish, others said that they saw a mermaid in the illustration. However, a section of the internet saw neither a fish nor mermaid but an array of things in the illustration, including JK Rowling. “It's a donkey, though (sic),” Rowling wrote.

See tweet below:

It's a donkey, though. pic.twitter.com/a60ccFCQ2G