He doesn't have to waste time looking for mates - 它不必浪费时间寻找配偶

213. His rank earns him the loyalty of a harem of females
     它的地位为它赢得了一群忠诚的母羊
214. and they follow him closely as he travels across this desert
     它们一起紧跟着它穿越沙漠
215. searching for foof and water.
     寻找水和食物
216. He doesn't have to waste time looking for mates -
     它不必浪费时间寻找配偶
217. they're his for the taking,
     它们都是它的妻子
218. so he can concentrate with them on keeping fit and healthy.
     所以它要做的只是保证它们健康精壮
219. Lizards are desert specialists.
     蜥蜴是沙漠专家

来自《行星地球 第一季 第五集 Planet Earth S01E05 沙漠》第 216 行