An adorable video showing Prince George, Princess Charlotte and Prince Louis all asking questions to Sir David Attenborough about wildlife has been released by Kensington Palace.
It's a rare chance for fans of the royal family to hear the children speak, and to see how much they have grown.
And it's believed to be the first time Prince Louis has ever been captured talking on camera.
The sweet footage was released by Kensington Palace and belongs to the Duke and Duchess of Cambridge.
In the video, the three royal children take it in turns to ask Sir David their questions.
Looking into the camera with his hands smartly behind his back, Prince George, seven, goes first, saying, "Hello David Attenborough, what animal do you think will become extinct next?"
Next is Charlotte, five, who looks shyly past the camera as she says, "Hello David Attenborough, I like spiders, do you like spiders too?"
And then it's the turn of little Louis, two, who asks the veteran broadcaster, "What animal do you like?", although it comes out sounding a little more like "amimal".
Of course, Sir David answers all their questions in great detail.
The footage was recorded at Kensington Palace last month.
The video comes as Sir David met with William, Kate, both 38, Prince George, seven, Princess Charlotte, five, and two-year-old Louis at Kensington Palace.
He attended a private viewing of his new environmental documentary with the Duke of Cambridge - which was held in the palace's grounds.
In pictures released last week, Sir David presented Prince George with a 23-million-year-old shark tooth.
The young prince was photographed handling the fossilised tooth from an extinct Carcharocles megalodon - one of the most feared predators to have swum in the seas - and looking intrigued.
Then, William and the veteran broadcaster watched A Life On Our Planet, a revealing and powerful first-hand account in which Sir David reflects on both the defining moments of his life as a naturalist and the devastating changes he has witnessed.
Socially distanced in the open air, the Duke of Cambridge and Sir David were offered directors' chairs with their names printed on the back - but in a change of plan they sat in each other's seats.
The 94-year-old broadcaster chatted to William, Kate and their three children George, Princess Charlotte and Prince Louis after the screening on Thursday.
