Tough optical illusion leaves many baffled as they can't spot the hidden animal

One confusing has left many people baffled as they find themselves unable to find the hidden image within.

you can see below requires a bit of intuition and a technique to help you see it. The illusion appeared on Reddit community ‘opticalillusions’ and shows black and white lines in a zig-zag pattern, but beneath the image is an animal.

water looking at this,” one person posted. Another said: “Can’t see anything, anybody has got any tips?” Others gave out advice encouraging fellow Reddit users to scroll up and down quickly or swipe left and right.

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For most people who were able to look past the illusion, an ape walking on all fours walking towards the right can be seen. If you still can’t see the image, try unfocussing your eyes.

Lots of optical illusions can be tricky to see, so don’t worry if this one took a little work. One bizarre image shared on TikTok by user @SeeThatMagic that you can see below is another one not everyone can see.

The video caption reads: “Stare at the middle of the screen, put your nose to the screen and pull away slow… What number do you see?” The image and the correct answer is below.

This clever trick is what is known as an ‘autostereogram’. Dr Brian Ang said on hs website Vision and Eye Health that autostereograms are “two-dimensional (2D) images with repeating patterns that hide an underlying three-dimensional (3D) image”. A more simple explanation, Dr Ang said, is that they are a “picture within a picture”.

Some users said they saw the number 350, others simply said they saw a zero. The correct answer from this brain teasing illusion is that people should see a zero in front of them.

He said: “They are not the same as stereograms. Stereograms require the use of a stereoscope for the 3D image to be seen… Autostereograms, on the other hand, do not require a stereoscope. The hidden 3D image can be seen with just the naked eye, as long as the correct focus can be achieved.”

Completing challenging puzzles, brainteasers and optical illusions may help improve your cognitive function, boost productiveness and memory. Aaron Seitz, PhD., professor of psychology and director of the Brain Game Centre at the University of California in Riverside told Real Simple: "Studies show that staying mentally fit is important for long-term cognitive health, but the difficulty is figuring out exactly how to do it.”