Water buffalo are ever vigilant... 水牛时刻保持警惕

175. Too heavy to climb,
     成年巨蜥太重 无法爬树
176. the adult goes in search of something more accessible.
     只能去寻找更容易攻击的目标
177. A thick layer of mud can't disguise this animal's scent.
     厚厚的泥浆掩盖不住它的气味
178. Water buffalo are ever vigilant...
     水牛时刻保持警惕
179. wary of their reptilian overlords.
     谨防爬行统治者来袭
180. But buffalo calves are not as savvy as their parents.
     但是小水牛就没有父母那么精明了
181. The dragon has lost its kill,
     巨蜥失去了猎物

来自《我们星球上的生命 第一季 第四集 Life on Our Planet S01E04 冷血动物》第 178 行