Koko the gorilla earned her pronoun a long, long time ago. It is one of humanity’s great vanities that we withhold pronouns from most animals — or at least we withhold the good ones. Homo sapiens get the dignity of a “he” or a “she.” We fob off other species with an “it.” We speak of the woman who walked down the street, and the dog that accompanied her. It was never that way with Koko, the celebrated western lowland gorilla who died peacefully in her sleep on June 19, at age 46 — a bit longer than the 30 to 40 years her species typically lives in the wild.