第四纪冰期，使许多物种绝灭。
Pleistocene glaciation caused the extinction of many species.
食肉动物的绝灭率大于食草动物；
The extinction percentage of carnivores is larger than that of herbivores.
物种濒危和绝灭不是随机的。
Species endangerment and extinction does not occur at random ecologically.
龙王鲸类是鲸类冠类群的绝灭姊妹群。
Basilosaurids are the extinct sister group to the crown cetaceans.
陆相地层是恐龙绝灭等事件信息的重要载体。
Continental Cretaceous-Paleogene strata are important information carriers of this extinction event.
在沙漠化过程中植物种的绝灭速率大于定居速率。
The extinction rate of plants in this area is higher than their colonization rate.
各种人为干扰和自然因素促使大量物种走向濒危和绝灭。
Many species have become endangered and extinct because of natural and factitious factors.
研究二叠纪末一三叠纪初生物大绝灭事件具有重要作用；
The action must also have played an important role in the mass extinction during the Late Permian and early Triassic.
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 becomes extinct, its genes are carried by the new group.
陆生恐龙的绝灭是白垩系-古近系界线事件中最引人注目的。
The mass extinction of terrestrial dinosaurs is the most important evolutionary event across the Cretaceous-Paleogene boundary.
通过对模型的稳定性分析，得到了决定疾病绝灭与否的阈值。
Through analysis of the stability of the model, the threshold which determines whether the disease is extinct or not is obtained.
多个实例证明，很多昆虫种类处在数量下降甚至绝灭的状态。
There is empirical evidence that many species of insects are declining, even going extinct.
这给人类在所有血统和所有祖先织锦之中构建了一个绝灭周期。
This set up humanity for an extinction cycle across all lineages and tapestry of ancestries.
另一种方式是出现了一种假绝灭，该属种可能演变为另一新种。
In the other case, a kind of pseudoextinction takes place, and the species may evolve into a new species.
主要运用比较定理得到了种群一致持续生存、弱持续生存以及绝灭的判据。
Sufficient criteria on uniform persistence, weak persistence and extinction of the consumer population are obtained by using mainly the comparison theorem.
Nomi仍在恢复健康中，那是极性将其梦想推入绝灭而不是生存的结果。
Nomi is still recovering from health issues that are the result of how polarity has pressed his dream towards extinction rather than life.
同时，生物在绝灭事件中的命运也和它们当时所处的演化阶段有密切的关系。
The fates of organisms which are in their different evolutionary stages may differ from each ot…
这也许是一切之中最大的悲剧，因为物质层变得如此破坏性而进入了绝灭的模式。
This perhaps is the greatest travesty of all, as the physical became so destructive that it went into extinction patterning.
提示过频破坏普通野生稻地上部分是该种部分种群发生地方性绝灭的重要原因之一。
This indicates that overfrequent destroying the above-ground part of common wold rice might be one of the most important reasons for local extinction of some populations of the species.
长毛象是已经灭绝了的一种象，它出现于约四十万年前，或许是在一万年前才遭绝灭。
An extinct group of elephants, woolly mammoths emerged some 400, 000 years ago and died out perhaps just 10, 000 years ago.
国际自然资源保护联盟的物种生存委员会是世界最大的与物种绝灭做斗争的保护专家网。
Species Survival Commission is the world's largest network of conservation experts dedicated to fighting the species extinction crisis.
尤其地球上有那么多人，即使一个女人只生1一个孩子，那到人类绝灭也得有好长一段时间。
And there are a lot of people on the planet. Even if your average woman only had 1 kid, it would take a LONG time before humanity was in much danger of extinction.
因此北太平洋海獭的近乎绝灭，导致了海胆的大量繁殖，海胆随后毁掉了迄今维持着自身生态系统的巨藻林。
Thus the near extinction of sea otters in the northern Pacific led to a proliferation of sea urchins, which then laid waste an entire kelp forest that had hitherto sustained its own ecosystem.
在不处于顶极状态的群落中的任何一个种，不是注定就地绝灭，就是成为一种在一定程度上的逃亡者。
Any species that is not in the climax community is doomed to local extinction and is a fugitive species to a greater or lesser degree.
在不处于顶极状态的群落中的任何一个种，不是注定就地绝灭，就是成为一种在一定程度上的逃亡者。
Any species that is. not in the climax community is. doomed to local extinction and is. a fugitive species to a greater or lesser degree.
在不处于顶极状态的群落中的任何一个种，不是注定就地绝灭，就是成为一种在一定程度上的逃亡者。
Any species that is. not in the climax community is. doomed to local extinction and is. a fugitive species to a greater or lesser degree.
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