The river marks the edge of his territory... 这条河是他领地的边界

173. But there are more artful hunters...
     然而还有更狡猾的捕猎者
174. ...drawn here from the surrounding forest.
     从周围的森林里被吸引至此
175. A jaguar, the supreme jungle predator.
     美洲豹 丛林中顶端的捕食者
176. The river marks the edge of his territory...
     这条河是他领地的边界
177. ...but here he has competition.
     但在这里 他遇到了竞争对手
178. He's now in the territory of a female.
     他闯入了一只母美洲豹的地盘
179. She has ruled this stretch of river for five years.
     她统治这一河段已有五年之久

来自《行星地球 第二季 第三集 Planet Earth S02E03 丛林》第 176 行