We observed a clear periodicity in the number of whales stranded each year that coincides with a major climatic cycle.

我们观察到每年搁浅的鲸鱼数量有明显的周期性，这与一个主要的气候周期相吻合。

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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。

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Nonetheless, the increased number of new cases observed over the past two months reveals the fragility of such progress.

尽管如此，过去两个月中观察到的新病例数依然在增加，表明了这一进展的脆弱性。

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They also had a creation story. They had a flood story. They did animal sacrifices. They observed purity taboos. Israelite religion was another Ancient Near Eastern religion and they differed from their neighbors only over the number of gods they worshiped: one or many.

他们都有原创的神话，他们都有一个关于洪水的神话,都有动物牺牲，他们都尊崇高洁的竹子,以色列宗教是另一种古近东宗教，它们和别的宗教,唯一不同之处就在于崇拜的神的数量：一个还是多个。

耶鲁公开课 - 旧约导论课程节选

In three epidemiologic studies on workers exposed to 1, 4-dioxane, the observed number of cancer cases did not differ from the expected cancer deaths.

FORBES: Responsible Investing: Is Pall 'Leading' in Water Filtration? (Governor Snyder's Hometown has a 1,4 Dioxane Problem)

Using the underground Sudbury neutrino detector, an international group of researchers has been able to determine that the observed number of electron-neutrinos is only a fraction of the total number emitted from the Sun - clear evidence that the particles change type en route to Earth.

BBC: SNO, SNO

As the Center for Security Policy has observed in a number of recent papers, the Russian military services are engaged in a number of activities highly inimical to Western security interests.

CENTERFORSECURITYPOLICY: Center For Security Policy