This lesson was explained with live-action footage, some left over from "Symbiosis" (with clips of people such as Native Americans, Native Hawaiians and Masai, clips of New York City and other locations such as the Amazon Rainforest, Serengeti, Andes, Las Vegas, Geno's Steaks in Philadelphia, and images of animals such as monkeys, bald eagles, snakes, elephants and wildebeest).