Dinosaurs and Sir David! What a combo! (Picture: BBC)

Sir David Attenborough fans, it’s time to get excited as the legend himself will explore how dinosaurs came to be extinct in a brand new BBC documentary.

The national treasure will look at some of the fossil finds from a new dig site at a secret, prehistoric graveyard hidden in the low hills of North Dakota, known as Tanis, for the one-off film Dinosaurs: The Final Day, with David Attenborough.

The fossilised creatures at the site, dating from the very end of the Late Cretaceous period and buried in a crumbly layer of rock, are preserved in such detail that they could help offer a clearer picture of the time just before an asteroid wiped out the dinosaurs than ever before.

Sir David will join leading experts and follow the dig team as they carry out cutting-edge visualisation and scanning techniques to reveal fossilised secrets invisible to the naked eye.

New VFX production techniques will be used to immerse the naturalist in the Late Cretaceous and bring the creatures which lived at Tanis to life.

Sir David will be back on television screens once again in the next coming months (Picture: BBC)

Sir David enthused: ‘Dinosaurs were among nature’s most extraordinary creatures, dominating the planet for over 150 million years before they became extinct.