A world chock full of dogs According to the estimates of the United Nations and the World Society for the Protection of Animals, the ratio of people to dogs is probably ten to one. That is to say, today there are nearly 500 million dogs on earth.
根據聯合國和「世界動物保護協會」估計，世界上人與狗的比例約十比一，等於今天地球上有將近五億隻狗。