Queen Elizabeth II presents the Chatham House Prize 2019 to Sir David Attenborough at the Royal institute of International Affairs, Chatham House on November 20, 2019 in London Colney, England. (Photo by Eddie Mulholland - WPA Pool/Getty Images)

Queen Elizabeth II presents the Chatham House Prize 2019 to Sir David Attenborough at the Royal institute of International Affairs, Chatham House on November 20, 2019 in London Colney, England. (Photo by Eddie Mulholland - WPA Pool/Getty Images)Getty: Images

David Attenborough and HRH Queen Elizabeth are both national treasures aged in their 90s but did you know they were pals. This clip of the pair will make you smile.

Best known as an animal-lover and natural historian, David Attenborough has lit up TV screens across the UK and beyond for many years.

Attenborough's work, particularly with the BBC, has become iconic. His narration and knowledge of exotic wildlife has earned him a lifetime of awards, and a knighthood.

At 94, Attenborough is the same age as Queen Elizabeth. The pair have come to be friends over the years, which is obvious in this clip!

A documentary released in 2018, called The Queen's Green Planet, drafted in David Attenborough to spend some time with Her Majesty in the grounds of Buckingham Palace.

The pair can be seen chatting while strolling around the grounds, enjoying the shrubery, and commenting on the noise of a helicopter circulating above.

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Have a look at the clip below, courtesy of ITV News