Creators of the puzzle, Book An Eye Test based in the UK, said it takes many people an average of one minute and 13 seconds to find the hidden fox.
Scroll down to see if you got the right answer!
Many brainteasers and optical illusions are making the rounds online.
Earlier this week, an optical illusion with a "secret" message hidden inside a square made up entirely of dots freaked out the internet because it "disappears" once you see it.
A different optical illusion shared @pasillusion also caused a stir recently after the content creator claimed there was "secret image" hidden in an optical illusion – but didn't reveal what it was.
The image shows a bubblegum pink square with a darker pink circle inside, that was captioned: "Can YOU See The Hidden Image?! Let me know."
Some claimed to see a number of objects: a bed, a smile and even a boat.
But the majority who reported seeing an image in the circle said they could make out the shape of a bottle.