What can nature teach us? It’s a question that mankind has investigated since the beginning of time. We’ve learned so much, but there’s still even more that we don’t know. That’s why people like David Attenborough dedicate their lives to studying the world around us. The lessons that David has learned over the years have filled multiple hours of television programming and even more publications and writings. One particular opinion of his, on the role of zoos in our society, stands out in today’s focus on the ethical treatment of animals. “I think the zoos have two very important functions. …