In this image, there's a pair of cheeky, yellow eyes peering out from a secret location - but can you spot them as well as they can hide?
People online have been left scratching their heads after being challenged to locate a cat hidden within the photograph of a red fence.
The tricky optical illusion image promises to test people's observational skills as a feline is cleverly disguised within the seemingly simple picture of a fence and parts of a tree.
Many people, however, have been unable to pinpoint the creature's location within a particular time frame of less than 10 seconds, leaving many to rise to the challenge of spotting it swiftly.
The jagged tops of the fence, which is peeling from its rusty-red paint job, towers to where grey wooden beams support the enclosure.
Shrouded by the branches and leaves of a green tree, which causes shadows to form along the fence, puzzlers are left little choice but to use their eyes and brain to break down segments of the image to find the cat.
But, for those who can look closely enough, the yellow-orange cat is peering from the shadows behind the the top of the fence.
Look towards the centre of the photograph, hidden between two tips of the jagged fence within a perfect triangle, and you'll be able to spot the cat's face, highlighted by a glimmer of sunlight.
The image is just the latest in many photographs that have puzzled internet users recently.
In November last year, a photo of a leopard circulated the internet as it appeared to be perfectly camouflaged against its surroundings as it stalked its prey.
Leopards are some of the stealthiest hunters on the planet, managing to avoid detection with deadly efficiency because of their spots.
Along with staying quiet as they approach their prey, keeping camouflaged is one of the keys to the big cats' stalking ability.
The picture below, shot by US photographer Art Wolfe, shows a leopard at the Kruger National Park, Transvaal, South Africa.
Even though leopard print spots make the creatures stand out in a zoo, in the wild where there are lots of light and dark patches in quick succession more naturally - such as looking through long grass - the pattern is an evolutionary advantage.
This not only helps with hunting, but also helps protect leopards form the potential threat of bigger predators such as lions - which share their habitat and compete for the same prey.
Look closer, and you'll see the big cat is peering through the foliage and past a tree as it seeks out its next meal.
The leopard is located to the far right of the photo, at the base of the tree trunk and behind a clump of tall grass.
