ONLY those with red-hot observation skills can spot the danger lurking in this picture.
Somewhere among this icy North Pole scene is a camouflaged polar bear and you are challenged to find it in only 10 seconds.
Among the melted ice sheets, a polar bear has been digitally inserted into this busy scene and prowls in the background.
The beast's snow-white fur perfectly disguises it against the icy backdrop and only a eagle-eyed viewer can find it.
Even the best puzzlers have been finding the Arctic animal fiendishly hard to locate.
Are you able to spot the lone polar bear in only 10 seconds?
read more on optical illusions
Fear not, help is on the way.
If you fancy another animal-centred riddle, can you spot this hidden kitty within a mess of flowers and plants.
Or if you want a further challenge, can you find the five differences between these beaver cartoons in only 15 seconds.
Maybe a wordier-puzzle excites you? Viewers are challenged to spot the hidden words in this mind-boggling optical illusion that's been packed full of waves and spirals.
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Meanwhile, in this beach-based picture, are you able to locate the hidden a crab amongst a shore of pebbles.