FOR a big round of a-paws, spot the real pooch, above. Laura Mann, 26, from Llandudno, North Wales, has become an internet sensation with her realistic wool models of dogs.
So which is the proper pet pooch among 48 of her cute creations.
Only the most eagle-eyed can work out which one of these 49 dogs is real. Can you see it?
Optical illusions help teach us how our eyes and brain work together to see.
Colours, shadows and perspective help our brains to understand what we are looking at and form an opinion based on these clues.
It comes after one particular brainteaser inspired by a popular video game has people hooked.
Only those with 20/20 vision can spot all of them in 19 seconds or less.
