As well as the Queen recently celebrating her 90th birthday, Sir David Attenborough has also reached the same milestone.
I can't help but feel so incredibly lucky to be living on this planet at the same time as this extraordinary man.
He would be the perfect dinner party guest - funny, riveting, modest and someone who you would never run out of conversation with.
I remember going to see the Queen when she came to Richmond Park in 2012, and he was there too. It felt like a double wammy in terms of being in the presence of Royalty.