Lots of people on social media have been left baffled by a mind-boggling optical illusion making its way around Twitter.
The picture features black and white patterns with the image of one or maybe two animals hiding below.
At first, the illusion simply seems like a bunch of psychedelic looking lines.
But as you look closer, you might spot something else.
Some social media users are convinced they see a cat with others having none of it explaining they make out a moose instead.
According to Twitter user @tlhicks713, the image you spot actually depends on how your brain works.
He explained: "Whatever animal you see isn’t part of the image, it’s just an optical illusion created by your own brain.
"If you zoom in on any of the features the illusion disappears."
However, many people on Twitter have been left baffled.
Some have failed to spot either animal with others claiming they can see a bit of both.
@Brunergary1 wrote: "I must have a balanced brain. I'm getting nothing."
Cat lover @meow_catface didn't manage to make out anything either, they tweeted: "I don't see either, even with my bias towards cats!"
According to experts, we are either left or right brained with one side being dominant.
Apparently, those who was left-brained are more analytical and methodical with right-brained folk usually more creative and artistic.
Which one do you see?
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