This brain teaser has challenged viewers to spot the dog. But the puzzle is not easy to solve as the item has been concealed in the background.

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The dog has blended so well with the rocks that it is difficult to spot him at first glance. It’s been hidden among an array of rocks.

Viewers who are struggling should cast their eyes to the centre of the puzzle. They should be able to spot the dog amongst the rocks.

For those that could not find the dog, it can be spotted on the right side of the image.

It is located right below the tree branch with a cross sign.

Predators in the wilderness can easily disguise themselves from potential prey.

The speed at which you can spot the cougar in this illusion determines your survival instincts.

A TikTok user, who goes by Idksterling (@idksterling), challenged his followers to quickly locate the wild animal.

And somewhere among this icy North Pole scene is a camouflaged polar bear and you are challenged to find it in only 10 seconds.

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