Zoo Revolution takes the viewer deep inside the increasingly controversial debate about the value of zoos in the 21st century. Love them or hate them, zoos are big business. Worldwide, zoos attract some 700 million visitors a year. Many animal‐welfare advocates argue that zoos are a colossal waste of resources that would be better spent in “the wild”, where habitat loss, poaching and climate change are taking a terrible toll on the earth's species. Zoo supporters maintain that zoos are critically important in helping humans re-establish our connection with animals and the wilderness. The fact is, radical change is coming to zoos everywhere, and the debate over their real purpose is only getting louder.