There are many people, it seems, who struggle to tell the difference between Ant and Dec and can identify them only by which always stands on the left and which the right.
Any time the TV presenters stand out of place, it tends to cause almost as much confusion and upset as the time they separated to shoot individual scenes on I'm A Celebrity, Get Me Out of Here!
That provoked a tide of comment on social media and it's safe to say ITV won't make the same mistake again and the last series of the show - transferred from the Australian jungle to a Welsh castle due to Covid and won by author and blogger Giovanna Fletcher - saw Ant and Dec back in their righful places.
While the wider nation may see the pair as inter-changeable, Geordie fans rarely confuse the two who they have known from their earliest days on Byker Grove and even uncovered new connections during ITV1 programme Ant & Dec's DNA Journey.
Or do they? Just how well we really know Anthony McPartlin and Declan Donnelly might become apparent in our light-hearted quiz which reveals some subtle differences between them which may well catch you out. Give it a try and see if you know which fact applies to which.
