• Herbalism had become an all but extinct skill in the Western world.

    草药医术西方世界几乎成了一项绝迹技术

    《柯林斯英汉双解大词典》

  • The idea of cloning extinct life forms still belongs to science fiction.

    绝种生命形式进行克隆的想法仍然属于科学幻想。

    《柯林斯英汉双解大词典》

  • Scientists are attempting to compare features of extinct animals with living analogues.

    科学家试图把已灭绝动物特征现存类似动物相比较

    《牛津词典》

  • At the current rate of decline, many of the rain forest animals could become extinct in less than 10 years.

    按照目前下降速度许多雨林动物不到会绝种。

    《柯林斯英汉双解大词典》

  • The simulated mammoths were extinct within decades.

    这些模拟猛犸象几十年间便灭绝了

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  • Let's take the now extinct American cheetah, for instance.

    我们现在已经灭绝美洲猎豹例。

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  • There's always some guesswork when studying extinct animals.

    研究灭绝动物时,要做一些猜测

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  • As is known to all, the panda is in danger of becoming extinct.

    众所周知熊猫濒临灭绝

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  • We must protect these endangered animals before they become extinct.

    这些濒危动物灭绝之前我们必须保护它们

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  • Unless tiger hunting decreases, tigers will soon be extinct in the wild.

    除非减少对老虎捕猎,否则野生老虎很快灭绝

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  • It is better for the sake of evolution to allow creatures to go extinct.

    为了进化最好生物灭绝

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  • They will tum out to be the second-largest species of birds to become extinct.

    它们成为第二灭绝鸟类

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  • When a species goes extinct, it dramatically changes the landscape of biodiversity.

    一个物种灭绝时,会极大地改变生物多样性状况。

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  • Perhaps dinosaurs could not tolerate these extreme temperature changes and became extinct.

    也许恐龙无法忍受这些极端温度变化于是灭绝了。

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  • Whatever the cause, dinosaurs, as well as about half of all species on the planet, went extinct.

    不管什么原因恐龙以及地球几乎半数以上的物种灭绝了。

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  • The Burgess Shale formation also has fossils of many extinct representatives of modern animal groups.

    吉斯页岩地层许多代表现代动物群中已经灭绝物种的化石

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  • If these great cats become extinct, the smaller animals they prey upon will overpopulate the forests.

    如果这些大型猫科动物灭绝了,那么它们捕食小型动物将会使森林中物种的密度过高。

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  • Boundary clay layers are used by scientists to determine the rate at which an extinct species declined.

    边界粘土科学家用来确定一个灭绝物种衰落速度

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  • America's national symbol, the bald eagle, almost went extinct twenty years ago, but it has made a comeback.

    美国国家象征秃头在20年前几乎灭绝了,的数量最终有所恢复。

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  • Humans have an obligation to try to save endangered animals, because it is our fault that they are going extinct.

    人类义务拯救濒临灭绝动物因为它们灭绝我们过错

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  • Cases in which many species become extinct within a geologically short interval of time are called mass extinctions.

    许多物种地质上很短时间间隔灭绝情况称为灭绝

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  • With all that attention paid to them, you'd think these creatures would at least have the gratitude not to go extinct.

    人们这些生物如此关注可能会它们没有灭绝至少应该心存感激

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  • Thanks to natural selection, most species that have ever lived has already gone extinct, so this is not a new phenomenon.

    由于自然选择大多数曾经存在过的物种已经灭绝所以不是一个现象

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  • This break in Earth's history is marked by a mass extinction, when as many as half the species on the planet became extinct.

    地球历史上的这次重大灾难以物种大量消亡标志;当时地球多达一半物种都灭绝了。

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  • Meteorite impacts can be advantageous for some species, which thrive, and disastrous for other species, which become extinct.

    陨石撞击某些物种有利的,它们会茁壮成长其他物种则是灾难性的,它们会灭绝

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  • This was a landscape where antelope of all kinds abounded—along with Bos primigenius, a kind of oxen that has become extinct.

    片充满了各种羚羊土地——还有,一已经灭绝的

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  • The beavers were hunted a lot, overhunted, they are almost extinct by the 1800s, that meant fewer wetlands, less standing water.

    海狸大量捕杀、过度捕杀,到19世纪它们几乎灭绝意味着湿地和静变得更少了

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  • Indeed, most analysts believe that some kind of environmental degradation underlies the demise of many extinct salmon populations.

    事实上大多数分析家认为某种环境退化许多已灭绝鲑鱼种群消亡根源

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  • When prehistoric man arrived in new parts of the world, something strange happened to the large animals: they suddenly became extinct.

    史前人类来到一地方时,一些奇怪事情发生在大型动物身上,那就是它们突然灭绝了。

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  • Geigl and her colleagues looked at 3200-year-old fossil bones belonging to a single individual of an extinct cattle species called an aurochs.

    格尔同事们研究了3200年前骨头化石,这些骨头属于一种已经灭绝叫做欧洲野牛种类

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