Every once in a while, an image is sent to test our powers of observation – and to teach us to suspend our disbelief .
One such image is currently doing the rounds and making people scratch their heads in confusion.
It’s a photo of four female friends having, by the look of it, a whale of a time on a day out.
They’re all dressed nicely and they’re all smiling at the camera.
But it’s not the girls which have captured the attention of the general public.
Instead, it’s something altogether more odd.
Can you see what it is?
There are no weird limb angles. Or extra arms or legs.
The girls all appear to have their own faces, are attired normally and no one is inadvertently flashing the camera.
It’s what’s actually going on behind the girls which has confused people.
Let’s take a closer look.
As you can see, the same man is walking with his head down in the background over and over again.
The image was posted on Imgur where people were quick to try and guess what made it different.
However, many failed to spot it, and one wrote: “I don’t get it,” while another said: “Their age?”
We could be wrong, but we think the background is down to someone’s photos hop skills, rather than any sort of witchery.