It's not only the abundance of food that attracts wild animals to cities. 充足的食物并不是吸引野生动物迁入城市的唯一要素
It's here that animals have to contend with the greatest change 在这里 动物必须抗争最大的变化
It's far brighter, louder and busier than anywhere in the natural world. 灯光 声音和忙碌超过任何地方的自然世界
It's a hard life for him in the city. 对他而言 城市生活布满荆棘
It's estimated that over one third of the grass that grows on Earth 据估计 地球上超过三分之一的草