Attenborough lends voice to Netflix's Our Planet seriesWatch
It has been produced in collaboration with Silverback Films, whose director Alastair Fothergill made Planet Earth and The Blue Planet for the BBC.
Speaking at a World Wildlife Fund (WWF) event on Thursday, Sir David said the eight-part series would "take viewers on a spectacular journey of discovery".
The series took four years to film.
Fothergill said he hoped the show, which will premiere on 5 April 2019, would "inspire and delight hundreds of millions of people across the world."
According to Netflix, the series will "showcase the planet's most precious species and fragile habitats, revealing amazing sights on Earth in ways they've never been seen."
I'm so excited!! Are you? Before that I fully plan to get on watching Dynasties which begins this Sunday (I think?)