I have a new addiction. Every night before bed, when no one is watching, I sneak into a dark room, turn on the television, and pop in another episode of Human Planet. Six episodes into an eight-part series, I’ve soaked up every second. This is no ordinary nature show. Whereas its predecessor, BBC’s Planet Earth, focuses on plants and animals, Human Planet celebrates the crown jewel of God’s creation: mankind. Human Planet takes us from...