The Carles' Quads.
Ellie, Georgina, Jessica and Holly Carles are identical quadruplets who were born in 2006. Their mother Julie was only the 27th woman in the world to conceive identical quads naturally, at odds of 64million to one.
The girls from Biggleswade in Bedfordshire started school in 2010.
I spent a day with them (unfortunately we were not allowed to disrupt school time) in September with a reporter to see how mum and dad, Julie and Jose, cope.
Read the story here.