Scientists have wondered about this behavior of animal species utilizing human surroundings: At a time when mankind is causing large-scale environmental change, the only species that can survive may be those flexible enough to accept human activity.
科學家曾對此種生物利用人類環境的行為提出疑問：在人類大規模改變環境時，只有彈性大、能接受人類活動方式的生物才能生存下來。