Given the extraordinary diversity of life on the planet, there must be mechanisms for speciation: the formation of two species from one original species.
考虑到地球上的生命的非凡多样性，一定存在着形成物种的机制：从一个原始物种演变为两个物种。
Around 95% of the islands' original species survive.
岛上大约95%的原始物种存活了下来。
Although the original species becomes extinct, its genes are carried by the new group.
原来的种虽然绝灭了，但其基因则被一个新的门类所继承。
Although the original species has _____ _____, its genes are carried by the new group.
原来的物种虽然绝灭了，但其基因则被一个新的门类所继承。
Those hybrids appeared better at surviving eutrophication and soon outnumbered the original species.
这些杂交品种在持续的超营养作用下生存的更好，且它们的数量很快超越了原始的品种。
And you end up with a mixture of some number of the original species, and some number of new species.
最后得到混合物，原物质，和新物质的。
Many places in the park you need to be a silviculturist to know you're not in virgin forest. Almost all the original species are back.
只有造林学家才能看出这片森林不是原始森林，几乎所有的原有物种都回到这里。
If the new species is too strong or USES too much of the resources in the habitat, some of the original species may become endangered.
如果新的物种太强大，占用过多聚居地的资源的话，一些原始的物种就会受到损害。
Objective: Based on an to investigation and identification of commercial samples to find out the original species and resources of Xue Lianhua.
目的：对全国雪莲花类商品药材进行调查和鉴定，以搞清市场主流商品的种类及其资源状况。
They can be identified from the morphological characteristics, microscopic characteristics, and its original species to let us use the herb carefully and exactly.
本文主要从性状特征、显微特征、原植物形态进行鉴别，为用药的准确性提供科学依据。
Their plan was to capture and separate tortoises with high levels of Pinta and Floreana DNA, and then breed animals that are genetically closest to the original species.
他们计划捕捉几只象龟，根据其携带的平塔岛象龟和弗罗里安那象龟dna数量进行区分，并对遗传学上最接近原始物种的象龟进行人工哺育。
That matters because theory suggests that the maximum sustainable yield that can be cropped from a fishery comes when the biomass of a target species is about 50% of its original levels.
这一点很重要，因为理论表明，当目标鱼种的生物量为其原始水平的50%左右时，渔场才能达到可收获的最大可持续产量。
And if a predator can move on to another species that is easier to find when a prey species becomes rare, the switch allows the original prey to recover.
当一种猎物变得稀有时，如果捕猎者能够转向其他更容易找到的物种，这种转变可以让原来的猎物数量得到恢复。
Darwin's original thesis, and the viewpoint supported by evolutionary gradualists, is that species change continuously but slowly and in small increments.
达尔文最初的论点以及进化渐进主义者所支持的观点是，物种的变化是持续的，但非常缓慢，增量也很小。
And the original question examined by Charles darwin-what is the mechanism that causes new species to evolve-has yet to be fully explained.
而被查尔斯·达尔文所检验的那个最本初的问题—是什么机制引发了新物种的进化—却尚未完全得到解答。
Depending on what else is nearby, these new forests may then be colonised by animals and additional plants, and thus support many of the species found in the original forest.
视附近的情况而定，动物和新生植物可能随后占据这些新生林区，因而保护了很多原生林里的物种。
Only 25% of the original habitats in the region remain intact and 163 species that live in the Eastern Himalayas are considered globally threatened.
该地区只有25%的原始栖息地完好无损，163种生活在喜马拉雅山东部的物种被定为全球范围内受威胁的物种。
"Some of [the small] brained species are lucky enough to find niches in urban habitats that are by coincidence a pretty good approximation of their original habitat," he said.
“某些小脑袋鸟类只是很幸运，能在城市栖息地中找到碰巧与它们原来的栖息地很接近的小生境，”他说。
Do you think that there is species before the original universe has come into being? It is impossible.
你是否认为，在原始宇宙之先，就已经有物种的存在呢？可是那是不可能的。
Humans will begin to restore their original height and stature thereafter along with each species upon earth.
其后连同地球上每一物种，人类将开始恢复最初身高与身材。
National Forest Park biabo Iezza in Europe, one of the last remaining virgin forest, where rare plant and animal species can provide a list of prehistoric visitors to the original style of window.
比亚沃耶扎国家森林公园是欧洲仅存的原始森林之一，这里的珍稀的动植物品种提供了可以让游人一览史前原始风貌的视窗。
He thought there was only one way to do this - by crossing different species of rice plant, and then he could produce a new plant which could give a higher yield than either of the original plants.
他想只有一种方法可以做这件事——通过杂交不同品种的水稻，然后他可以制造一种新的水稻，这种水稻可以比原先的任何一种产量更高。
The polyploidy cell masses and the haploidy cells appeared in the tissue cultures will not result in the hereditary variability and the changes of the character in the original diploid species.
组织培养中出现的多倍性细胞团和单倍性细胞，不会引起原二倍体物种的遗传性变异和性状变化。
Alien invasive plant is one that is introduced from original ecosystems to new ones by nature force or human activity, which endangers the new environment or native plant species.
外来入侵植物是指自然或人为地由原生态系统中引入到新生境的植物，会给新生境或其中的物种带来威胁。
As this occurred, the human dream was then used to shatter earth and all species therein, rather than fulfill upon it's original purpose.
当这发生，人类梦想于是被利用来粉碎地球以及所有其内的物种，而不是实现它的最初的目标。
Do you think that there is species before the original universe has come into being?
你是否认为，在原始宇宙之先，就已经有物种的存在呢？
Do you think that there is species before the original universe has come into being?
你是否认为，在原始宇宙之先，就已经有物种的存在呢？
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