There are many jaw-dropping optical illusions but this one will have you shaking your head..literally. At first look, all you can see are rows of black and white lines but if you watch closely at the image while shaking your head, a hidden image will gradually reveal.
This optical illusion was first shared by nanotech engineer Dr. Michelle Dickinson on Twitter. “You can only see this optical illusion if you shake your head (I’m serious),” she wrote. Right after she posted the image, Twitter users started sharing their thoughts on the unusual image and their tips on how to see the hidden animal such as moving the image back and forth, or narrowing your eyes.
