As per me zoo should not be banned as animals in zoo are fed and taken care of.They are well trained and they don't harm anyone. They get a proper place and habitat to live but every coin has to sides If zoo are banned then animals can live among forests as they do ...they don't need to be caged. They can roam around  anywhere they like ...they can live with their family members and for food they can hunt the animals ...but what about the herbivores they don't hunt animals .....so as per me in conclusion zoo should not be banned