I remember them all so, so well. Goliath, who lost his alpha position when Mike, using his superior intelligence, learned to enhance his dominance displays by hitting and kicking empty four-gallon tin cans ahead of him. William, the clown, who once stole a blanket, dragged it up the hillside, then draped it over his head and felt around him like a child who has been blindfolded.

Is it really 50 years ago that I stepped ashore, for the first of who knows how many hundreds of times, onto the sandy beach of Gombe Stream Chimpanzee...