Competition between these rival species 这些对手物种之间的竞争

161. she races back to her nest.
     飞奔回巢穴
162. She's a member of another ancient group of social insects...
     它是另一个 古代社会性昆虫群体的成员
163. the ants.
     蚂蚁
164. Competition between these rival species
     这些对手物种之间的竞争
165. has been raging for millions of years...
     已经持续了数百万年
166. in a remarkable evolutionary arms race.
     这是一场精彩的进化军备竞赛
167. Back at her nest, the scout summons an army of her own.
     侦察兵从巢穴召集了一支军队

来自《我们星球上的生命 第一季 第五集 Life on Our Planet S01E05 巨兽阴影下》第 164 行