Born in 1926 in suburban London, Attenborough collected fossils as a child, studied zoology at Cambridge, and got drafted into the Royal Navy in 1947. He had a career as a BBC manager before moving on-camera only after someone else got ill. He was already age 30 though wearing what looks like a Boy Scout uniform of khaki shirt, shorts and knee socks when in 1956, he wrestled a Burmese python into a burlap sack on TV.