There are striking differences in life span between different species, but within one species the parameter is relatively constant.
不同物种之间的寿命存在显著差异，但在同一物种内，这一参数是相对稳定的。
I believe they were a subspecies of human but not a different species.
我相信他们是人类的一个亚种，而不是什么不同的物种。
Mixed flocks of several species often travel together, but when they are feeding or resting you will spot different birds on the ground, at mid-level heights and at the tree tops.
很多种鸟常常混群共同迁徙，但是当他们停下来觅食休息的时候，你就会发现不同的种类有的在地面上，有的在中层高度，有的则在树顶处。
But biologists reconstructing the mammalian tree of evolution from the DNA of living species have come to a different conclusion.
但是利用现存物种的DNA重建哺乳动物系统树的生物学家却得出了不同的结论。
The two animals are similar in appearance， but they belong to different species.
这两只动物外貌很相似，但它们属于不同的种类。
The bluish specimens at the top of the left and right jar belong to the tree viper genus Trimeresurus but are different species.
左侧罐子顶端和右面罐子顶端的蓝色标本属于树毒性的竹叶青，但却属不同的物种。
This will be different for each of the species (i.e. beef, pork, chicken), but should vary only slightly within the species.
不同种类的肉(即牛肉、猪肉、鸡肉)气味不同，但同一种类的肉，气味允许有轻微变化。
But theycan still distinguish between different species of bees, explained thescientist.
但是它们也可以区分不同品种的蜜蜂。 科学家这样解释道。
But white tigers are rare genetic mutations, not a different species.
但白虎仅仅是一种罕见的遗传变异，而不是一个不同的品种。
Complicating the matter are "cryptic" species, which look the same to the human eye, but genetically are quite different, making them that much harder for scientists to classify.
让人头疼的是那些“同形”种，它们看起来都一样，但是实际上基因差别相当大，给科学家的分类工作造成了很大困难。
Vinifera has been honed into hundreds of varieties, red and white; but the grapes are all still members of the same species, with limited cross-breeding between different varieties.
欧亚葡萄已经被培养出几百个变种，或红或白；但是这些葡萄跟其他品种的葡萄杂交的几率非常的小，所以它们仍然属于同一种类。
The number of bird species on islands today is almost exactly the same as it was prior to human colonization, but the species of birds on the islands are very different.
岛上今天鸟种类的数量几乎和人类定居之前完全一样，但是岛上鸟的种类则非常不同。
But the research by Crowder, an insect ecologist at Washington State University in Pullman, and his colleagues, shows the importance of 'evenness' - the relative abundance of different species.
但是华盛顿州立大学的昆虫生态学家克劳德的研究显示平衡的重要性——各种物种相对充盈。
But Anderson stresses the need for more research and detailed observations of these events to better understand the nuances and variations of the species' response to different types of deaths.
安德森强调有必要对此类事件进行更多的研究和细致的观察以便更好地了解这个物种应对不同类型死亡时的微妙变化。
As birders observe new species, they not only learn about different birds, but they also learn about migration, bird behavior, feed preferences, courtship and bird territories.
观鸟者观察各种新的物种，从中他们不止能认识不同的鸟种，还能学到关于迁徙、鸟类行为学、食性、求爱还有鸟类领地的知识。
But with so many bacteria - hundreds of different species can inhabit your skin alone - how can we begin to master this chemical language to examine its medical potential?
但是这么多的细菌，单是生活在皮肤上的就有数百种之多，我们怎么开始支配这些化学语言以检测它们的医用潜能呢？
Different species of Plestidon skink are native to the same parts of Western North America, but are different sizes.
丽纹石龙子的不同物种生于西北美洲的相同部分，但是它们的体型大小不一。
And with other species one might have to say something different. But for me, the love of persons is crucial but that can't be separated from a love of bodies.
与其他生物，有人也许会说的不同，但是对我来说，我对人的爱是至关重要的，但是那与对身体的爱分不开。
Before 1997 WNV was not considered pathogenic for birds, but at that time in Israel a more virulent strain caused the death of different bird species presenting signs of encephalitis and paralysis.
在1997年以前，西尼罗河病毒并未被认为对鸟类具有致病性，但就在那时，以色列出现了一种能够导致多种鸟类出现脑炎和麻痹症状继而死亡的毒力更强的毒株。
Florida is one example: it produces a few grapes for the table, but these are muscadines, a different species from those usually used for wine.
佛罗里达就是一个例子，他们种植作为水果的葡萄，也种植用于酿造葡萄酒的品种。
But the fact that they look so different does not necessarily mean they are different species. However the proof lay in the analysis of the DNA.
但事实上，他们看起来如此不同，并不一定意味着它们是不同的物种。然而，证明奠定了DNA分析。
Thee two animals are similar in appearance, but they belong to different species.
这两只动物外貌很相似，但它们属于不同的种类。 。
The two animals are highly similar in appearance, but they belong to different species.
这两只动物外貌很相似，但它们属于不同种类。
Isotope: One of two or more species of atoms of a chemical element having nuclei with the same number of protons but different Numbers of neutrons.
同位素：一种化学元素的两个或多个类型，它们的原子核具有相同的质子数，而中子数却不同。
That means researchers could determine not only which species of bacteria were present and in what proportions, but also which genes these bugs were actively using in different conditions.
这意味着研究者不但可以定性定量地分析肠道菌种，也可以这些菌种是通过那些基因对不同的环境条件进行应答的。
But the essential reasons for making the species different are the genes on the chromosome and the other genes (ie. the hereditary background).
但是造成物种不同的根本原因是染色体上的有关基因及其以外的其他基因组成(即遗传背景)。
The mites belong to the family Demodicidae, genus Demodex by taxonomic characteristics, but they are different from other species described before Further study would be needed.
据分类特征该螨应属于蠕形螨科、蠕形螨属，但某些形态特征与已见描述的该属中其他品种不同，有待于进一步观察研究。
With time passing, decomposition rate of mulching plants and release rate of plant nutrients are slowed down gradually, but its stability varies in different plant species.
随着时间的变化，覆盖植物分解速率和养分释放由快变慢，且稳定性因植物种类的不同而存在差异。
With time passing, decomposition rate of mulching plants and release rate of plant nutrients are slowed down gradually, but its stability varies in different plant species.
随着时间的变化，覆盖植物分解速率和养分释放由快变慢，且稳定性因植物种类的不同而存在差异。
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