David Attenborough was born on this day, a 100b years ago. When he first stepped foot on planet Earth, it had been only a couple of years since the first intercontinental flight had taken off in 1924. By the time he turned 18, World War II was on the verge of a close. It was the ideal time for what the legendary nature broadcaster and narrator went on to do — fly across the world, explore hidden natural treasures, and document them for the rest of the globe to witness and gawk at. “People had never seen pangolins, sloths, or the centre of New Guinea before on television,” he says in the 2020 Netflix documentary David Attenborough: A Life on Planet. By that point, humans had gotten a groove on how to live the world. They’d eliminated their predator. They’d figured out a way to sustain themselves agriculturally. And the pervasive mood was of progress, not destruction. Countries began opening up instead of waging wars against each other.…