Objective To study species and distribution of fleas in Zhangjiakou.

目的研究张家口市蚤的种类及其分布。

Objective To study species and distribution of rodents in Zhangjiakou.

目的研究张家口市啮齿动物种类与分布。

The new study found that 70 percent of rodent and primate groups have species with an appendix.

这项新的研究发现，70%的啮齿动物和灵长类动物的物种具有阑尾。

A study, published in January in the US magazine, Science, found that almost all recorded shark species have fallen by half in the past 8 to 15 years.

1月在美国杂志《科学》上发表的一项研究发现，在过去8至15年间，几乎所有有记录的鲨鱼种类的数量都减少了一半。

Archaeological study of wood charcoal found in hearths dating to the various episodes of occupation indicated that the species use changed in a patterned way.

考古研究发现，在壁炉中发现的木炭可以追溯到不同的时期，这表明物种的用途发生了模式上的变化。

A recent study of ancient and modern elephants has come up with the unexpected conclusion that the African elephant is divided into two distinct species.

一项针对古代和现代大象的研究得出一个出人意料的结论：非洲大象已经分化成两个不同的物种。

It's not only the study of human population, but the populations of non-human species, including viruses.

这不仅是对人类种群的研究，也是对非人类种群（包括病毒）的研究。

The researchers study the proteins in the venom genes of various species of colubrids.

研究人员研究了不同种类的胭脂鱼的毒液基因中的蛋白质。

In that study, each of eight different trilobite species was observed to undergo a gradual change in the number of segments.

在这项研究中，观察到八种不同的三叶虫，每一种都经历了身体节数的逐渐变化。

"The big message from this study is that there is another species out there, that is meaningful in its communication, so that's not unique to humans," said Dr. Hobaiter.

霍拜托特博士说：“这项研究的重要信息是，还有另一个物种在进行有意义的交流，所以这并不是人类独有的。”

The rattlesnake tissues provoked the strongest response of all the species in the study.

响尾蛇的组织在本次所有研究物种中所作出的反应最强烈。

As these are endangered species, he said, invasive methods of physiological study are not appropriate.

他说，由于存在濒危的物种，侵犯性的生理研究方法并不适宜。

"In the species that I study, the zebra finch, they make lifelong couples, and it's very important for them to recognize their mate," he says.

就我研究的种类——斑胸草雀——而言，它们终其一生只有一位伴侣。因此，对它们来说如何辨认伴侣的声音非常重要。

Scientists are therefore rushing to study such species, which may hold the secrets of increasing our own longevity.

因此科学家们正争先恐后地研究这样有可能包含着增加我们寿命的秘密的物种。

Researchers continuously study specimens and identify them, all the while hunting for new species.

研究者在不断研究和辨认标本的同时，还在发掘新物种。

The reserve's mission is to observe, study and breed the endangered species to increase their chances of survival.

保护区的任务是观察，研究和繁殖频域灭绝的物种，增加它们的生存机会。

A disruption as big as climate change is bound to challenge numerous species. This study suggests that some challenges will be as unexpected as a cunning predator.

诸多物种面临着同气候变化一样巨大的毁灭性挑战。这项研究表明，一些挑战将同狡诈的捕食者一样难以预料。

A disruption as big as climate change is bound to challenge numerous species. This study suggests that some challenges will be as unexpected as a cunning predator.

随着气候变化所产生破坏的加剧，必定会挑战更多物种的生存。此项研究表明有些挑战有如狡猾的猎食者般不可预期。

Previous studies have suggested that some species are at risk for extinction due to their change in habitat, but this study did not delve into which species might be most in peril.

既往研究表明，有些物种由于栖息地的变化而濒临灭绝，但这个研究没有在哪个物种最为危在旦夕这一点上进行深入研究。

The next step, Rekers said, is to study other primate species, such as bonobos.

下一步，雷卡斯将研究其他灵长类的物种，如巴诺布猿。

In the future, the researchers plan to study ocean acidification's effects on other species.

将来，研究者们计划在其它物种上研究海洋酸化的效应。

Our study might suggest that species are more resilient than we thought.

我们的研究可能表明，物种比我们想象的具有更大的适应力。

It is important to study these differences to understand the parameters of the species.

研究这些不同点对于了解物种的特征很重要。

A study of 171 forest species in Western Europe shows that most of them are shifting their favored locations to higher, cooler spots.

在西欧的一项关于171种森林物种的研究表明，这些树木正在移向海拔更高、更冷的区域。

Because so little known about the ecology of the species, it will take further study to grasp what the Wolf's living situation is today.

人们对该物种的习性知之甚少，要掌握这种狼在当今的生存状况，还需要进一步的研究。

Publishing a revision for a large group based on a study of only a few hundred species is a recipe for scientific dispute.

况且仅仅研究了几百个种类就敢发表称这一群类都需要修正的文章，自然会引来争议。