George: A portrait of his royal rascalness, by grandad
The Duke of Cambridge has described his new son as a "little bit of a rascal".
In his first interview since the birth of Prince George on July 22, William said he and Kate were enjoying their new role as parents.
"He's a little bit of a rascal, I'll put it that way," William told CNN. "He either reminds me of my brother or me when I was younger, I'm not sure, but he's doing very well at the moment."
William described George as a "little fighter".
"He kind of, he wriggles around quite a lot," he added. "And he doesn't want to go to sleep that much, which is a little bit of a problem."
The first official photo of George shows him cradled in his mother's arms asleep – and he appears as though he doesn't have a care in the world.
The intimate pictures were taken by Kate's father Michael Middleton in a shady spot of the family's garden in Bucklebury, Berkshire, earlier this month.
The Duke admitted he doesn't get up in the night to see to the baby as much as Kate, adding she is doing a "fantastic job".
But William believes fatherhood has changed him already. He added: "I think the last few weeks for me have been just a very different emotional experience. Something I never thought I would feel myself.
"And I find, again it's only been a short period, but a lot of things affect me differently now."