Of course as us historians know It's all down to Evolution,Let me try and explain.
In the beginning,God who was a Lancastrian gave us the Pennines to separate us from the Yorkies.
All was going well till the middle of the 15th century when the Yorkies got a bit stroppy and decided to have a dig at the chosen race.
This were it gets interesting,We had evolved the Tudor Rose thanks to Henry V11th but all the Yorkies had evolved was big lug-holes.
The scene was set for the battle of Bosworth 22nd Aug 1485.
All we had to do was sneak up quietly using our Tudor Roses to sniff out the Richard the thirds.Job done - Simples.
Happily we are now all friends thanks to a trade off of recipes,They got our Hot-Pot and we got the puddings(I think an ancestor of Arthur Scargill was on their negotiating committee) Certainly got the best deal.
The point is they have retained the big flappers so they can still hear what is going on over here and as usual are blaming the children God.