当一只底栖鱼逃离隐藏的地点时，不会马上再找个地方藏身，而是会游上几米。
After a fish emerges from its hiding spot, it swims a few meters away and doesn't immediately rebury itself.
一亿两千万年前，白垩纪的海洋覆盖着现在的澳大利亚南部，一条鱼龙（注：一种类似鱼和海豚的大型海栖爬行动物）经历了十分糟糕的一天。
One hundred and twenty million years ago, when a Cretaceous sea covered what is now South Australia, an ichthyosaur had a really bad day.
尽管人们捕捉一只隐藏的底栖鱼只需9分钟，但始终比不上动作优雅的海豚。
Although not nearly as graceful as sponging dolphins, "which are really elegant in their moves," Patterson says, the human sponger nonetheless managed to scare up a hidden prey fish every 9 minutes.
1923年夏日的一天，一位挪威船夫的两个男孩正在一个大池塘中捉鱼嬉戏，因为据说这个水塘有从Vefsen河游来的大鱼栖歇其中。
Two young sons of a Norwegian boatman were playing at fishing, one summer's day in 1923, in a pool that was known to hold big fish on Norway's River Vefsen.
趁着这个间隙，海豚会丢掉嘴中的海绵，浮出海面换气，接着马上潜入水里捕捉这些长度只有12cm的底栖鱼。
That interlude gives the dolphin just enough time to drop its sponge, surface to get a breath, and dive again to snag the fish, most of which are about 12 centimeters in length.
鱼，一些两栖类和原始的产卵的哺乳动物，如鸭嘴兽，使用类似的凹陷获得附近的动物产生的电场。
Fish, some amphibians and primitive egg-laying mammals such as the duck-billed platypus use similar pits to pick up electric fields generated by nearby animals.
鸟类、鱼和两栖类是“卵生”的动物。
大部分为底栖鱼，特征是具一个由腹鳍愈合而成的吸力不强的吸盘。
Most species are small bottom dwellers with a weak suction cup formed by the fusion of their pelvic fins.
在这些研究过的动物种群中，至少有750种鱼、290种爬行类、150种两栖类面临风险。
Of those studied, at least 750 fish species, 290 reptiles, and 150 amphibians are at risk.
大西洋西部温暖水域的底栖鱼，身体扁平无鳞，靠胸爬泳。
Bottom-dweller of warm western Atlantic coastal waters having a flattened scaleless body that crawls about on fleshy pectoral and pelvic fins.
该博物馆包括了六个分部：哺乳动物、鸟、两栖和爬行动物、鱼、昆虫及其他节肢动物、以及软体动物等，这些分部收藏的标本大约有一千五百万种。
The Museum includes six divisions: mammals, birds, amphibians and reptiles, fishes, insects and other arthropods, and molluscs. The divisional collections include some 15 million specimens.
该博物馆包括了六个分部：哺乳动物、鸟、两栖和爬行动物、鱼、昆虫及其他节肢动物、以及软体动物等，这些分部收藏的标本大约有一千五百万种。
The Museum includes six divisions: mammals, birds, amphibians and reptiles, fishes, insects and other arthropods, and molluscs. The divisional collections include some 15 million specimens.
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