雅思口语实时真题：为什么人们喜欢热闹的地方？

Why people like crowded places? I think there are some evolutionary reasons. Human beings were a physically very weak species in ancient times compared with those ferocious animals like lions and leopards. So, they needed to resort to their collective intelligence to survive the wild world.

. As a result, those gregarious genes remained in human species while those that are not much so were weeded out.