鱼类的鳃与陆上动物的肺类似。
The gills of fishes are analogous to the lungs in terrestrial animals.
鱼类的鳃与陆上动物的肺可说成是类似的。
The gills of fishes are said to be analogous to the lungs in terrestrial animals.
从陆上动物，海洋哺乳动物和鸟类，我搜集优良野生动物摄影28惊人的动物形象。
From land based animals, Marine mammals, and birds, I collect 28 stunning animal images with excellent wildlife photography.
对于北极圈的成熟物种和陆上动物而言，夏季海洋中的冰块存量至关重要，而在气候变暖的情境下，夏季海洋中，冰块“被融化”的年平均量与日俱增。
Summer sea ice is vital to a range of Arctic marine and land animals, and its annual summer melt-off is projected to increase dramatically as the climate warms.
曾经生活在澳大利亚这片广袤大陆上的巨型动物经历了什么？
What happened to Australia's megafauna, the giant animals that once existed across this enormous continent?
蔗蜍本身变成了一种害虫，并且已经破坏了那片大陆上的很多野生动物。
The cane toad itself became a pest and has destroyed much of the wildlife on that continent.
就在这一发现宣布的同时，加拿大专家也公布了他们自己非凡的发现：一种大陆上或许是最不可怕的食肉动物的化石。
The discovery was announced as Canadian experts unveiled their own remarkable finding, the fossilised remains of what may have been the least fearsome predator ever to stalk the continent.
这一研究，刊登在最新出版的古脊椎动物杂志上，为的是进一步强调：蛇是由在陆上穴居和海洋里游泳的蜥蜴进化而来的。
The research, outlined in the latest issue of the Journal of Vertebrate Paleontology, strengthens the belief that snakes evolved from a lizard that either burrowed on land or swam in the ocean.
这些物种打开了一扇揭示鳄鱼世界的窗口，它们与生活在北部大陆上的动物完全不同。
These species open a window on a croc world completely foreign to what was living on northern continents.
因此，在不能适应寒冷的肉食动物如海蟹、鲨鱼的关注下，南极大陆上的动物已经自由自在了几百万年。
As a consequence, the animals of the Antarctic continental shelf have been free for millions of years from the attentions of predators, such as crabs and sharks, that cannot cope with the cold.
猛犸象和乳齿象都是类似大象的动物，有着长长的牙齿，超过1.28万年以前在这块大陆上已经灭绝。
Mammoths and mastodons are both elephant-like creatures with long tusks that both faded into extinction on this continent more than 12, 800 years ago.
南乔治亚岛是观察南极野生动物的极好入门之地，也给我们以观赏王企鹅的快乐——南极大陆上没有王企鹅。但是岛上也有令人恐惧的捕鲸站，有探险的梦想和历史剧。
South Georgia was a great introduction to Antarctic wildlife and the pleasures of king penguins - which you don't see on the Antarctic continent.
空中、水里、陆上运动的动物具有不同的运动方式，因此半转机构也必须用不同的方式去实现它们的运动效果。
The animals act in air, water or on lands have different motion styles. Therefore, Half - rotating mechanism must use different way to realize their motion effect.
本种鱼与陆上一般动物不同，其心搏率几乎与运动强度无关。
It is suggested that unlike animals on land, the heart beat rate of Brown Goby is almost independent of movement strength.
在某种程度上，所有的生物学和医学发现都取决于它，同样，所有的陆上脊椎动物都可以把自己的祖先追溯到那第一条冒冒失失地爬上岸的鱼。
At some level every discovery in biology and medicine rests on it, in much the same way that all terrestrial vertebrates can trace their ancestry back to the first bold fishes to explore land.
他们落在一片大陆上，再次被迫在动物园以外的残酷世界中勇敢求生。
Crashing on the mainland continent, they are forced to brave the harsh realities of life outside the zoo... again.
这个争论包括海岛规则的机制：在这个岛上栖息的小型动物比它们在大陆上生活的近亲体型进化得更大，而大型的动物则进化得更小。
The debate involves the mechanism underlying the island rule: that small animals isolated on islands evolve to be larger than their mainland relatives, and large animals evolve to be smaller.
又过了三十亿年这个大陆上才出现了第一批植物与动物。
Yet another 3 billion years were to pass before the first plants and animals appeared on the continent.
这种移动缓慢的庞然大物十万年前曾穿越维多利亚平原，那时巨型动物仍然盛行在大陆上。
The slow-moving behemoth had been crossing a volcanic plain 100,000 years ago, when megafauna still walked tall.
这种移动缓慢的庞然大物十万年前曾穿越维多利亚平原，那时巨型动物仍然盛行在大陆上。
The slow-moving behemoth had been crossing a volcanic plain 100,000 years ago, when megafauna still walked tall.
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