Go "hand-in" to touch a shark, a crab, or thousands of tiny cleaner fish that will bite playfully at your fingers.
亲手触摸鲨鱼、螃蟹，或数以千计的小清洁鱼，它们会开玩笑地咬你的手指。
They saw that the male cleaner fish — even in this unfamiliar lab setting — would punish or chase away the female fish if the females ate a prawn.
他们看到，如果雌鱼吃了对虾——即使是在这个陌生的实验室环境中——雄性裂唇鱼也会惩罚或驱赶雌鱼。
As soon as they get under those rafts of kelp, the exfoliating cleaner fish come.
一旦它们到达海藻下方，吃死皮的清洁鱼就赶来。
By protecting their clients from being bitten by overzealous female cleaner fish, the males bag some tasty dessert for themselves.
这类公鱼会保护牠们的客户不被过度积极的母鱼咬伤，随后自己独享这些美味的点心。
It's a mutual beneficial relationship in which the larger fish provides the cleaner fish with a food source and protection, and the cleaner keeps it free from parasites in return.
这是一种互利关系，大鱼为清洁鱼提供食物来源和保护，作为回报清洁鱼使其免于寄生虫侵扰。
Recently fish populations have recovered as release of industrial pollutants has declined and the lake's waters have become cleaner.
最近，随着工业污染物排放的减少和湖水的清洁，鱼类数量有所恢复。
The river's surface has become cleaner in places, and some fish have returned.
这条河的表面变得清洁许多，一些鱼类也已重返河流。
There, hungry and detail-driven cleaner wrasse fish rid sharks of dead skin, external parasites and other undesirables.
在那里，饥饿而喜欢吃小东西的清洁工濑鱼会将鲨鱼的死皮、外部寄生虫以及其他讨厌的东西去除。
Fish and other wildlife seem to be fleeing the oil out in the Gulf and clustering in cleaner waters along the coast in a trend that some researchers see as a potentially troubling sign.
鱼类和其他野生动物似乎正逃离被漏油污染的墨西哥湾，聚集到沿岸清洁的水域避难，一些研究人员认为这一趋势可能是个不好的征兆。
Cleaner wrasses, known as the reef's vacuum cleaners, suck morsels of food, parasites, and dead skin from reef fish.
清洁工濑鱼，被认为是暗礁的真空吸尘器，吸入少量的食物，寄生虫，和从暗礁鱼的死皮。
Cleaner wrasses, known as the reef's vacuum cleaners, suck morsels of food, parasites, and dead skin from reef fish.
清洁工濑鱼，被认为是暗礁的真空吸尘器，吸入少量的食物，寄生虫，和从暗礁鱼的死皮。
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