Meteorite impacts can be advantageous for some species, which thrive, and disastrous for other species, which become extinct.
陨石的撞击对某些物种是有利的，它们会茁壮成长；而对其他物种则是灾难性的，它们会灭绝。
In addition to all that, it is not even clear that assisted migration or any migration for that matter, will help at least for some species.
除此之外，我们甚至不清楚辅助迁移或任何相关的迁移是否至少对某些物种是有帮助的。
Additionally, taxonomic revisions were presented for some species based on field observation and herbarium work.
此外，根据野外考察和标本馆工作，对几个明显的分类学问题进行了订正。
If they do not, as for some species of bat, then even a small creature can live for decades in just the way that a large animal would.
如果小动物缺乏天敌，如一些蝙蝠，他们就可以像大型动物一样存活数十年之久。
In addition, it is quite common for some species to take on a different leaf colour (usually changing from green to red) when about to flower.
另外，一些种类的叶子会变化不同的颜色是十分常见(通常由绿变红)，当将要开花的时候。
Artificial inducement of flowering is an ideal research system of cross-breeding and flowering bio-physiology for some species with bad-induced flowering, which has proved successful in 10 species.
开花人工诱导对难开花的竹子来说是杂交育种和开花生理生化研究的理想研究系统，在10个竹种中诱导成功；
While studying endangered species may provide some insights to scientists, the cost of keeping these animals in existence can not be justified for research purposes alone.
虽然研究濒危物种可能为科学家提供一些领悟，但仅仅为了研究的目的而饲养这些动物的话，其饲养成本是不合理的。
Actually, there are some species of bats, the ones that don't use echolocation that do rely on their vision for navigation, but it is true that for many bats, their vision is too weak to count on.
事实上，有一些品种的蝙蝠不使用回声定位，而是依靠视觉来导航，但对很多蝙蝠来说，它们的视觉太弱了，确实不能依靠。
Responding to changes in the CF echo's frequency, bats of some species correct in flight for the direction and velocity of their moving prey.
有些种类的蝙蝠会根据回声频率的变化来调整向猎物移动的方向和速度。
If you want to target certain species of animals, then some parks are better than others for certain species.
如果你想看某些种类的动物，那么有这些动物的公园比其他公园要好。
Some of the lowest islands could be allowed to flood, providing habitat and food for smelt, salmon, and other native species.
海拔最低的一些岛屿如果适当泛滥的话，还可以为胡瓜鱼、鲑鱼和其他本地物种提供栖息地和食物。
Smith says that some species, most famously maples, produce anthocyanin during autumn as a kind of antioxidant for trees.
史密斯说，一些物种，例如最有名的枫树，在秋天会产生的一种抗氧化剂的花青素。
Her team aims to generate stem cells for at least 10 other species, including snow leopards and some species of elephants.
她的团队希望能培育出至少10个物种的干细胞，其中包括雪豹和某些种类的大象。
Mr Payne, 75, is best known for his 1968 discovery and recordings of songs by humpback whales, and for finding that some whale species can communicate with each other over long distances.
佩恩先生，75岁，最为知名的是他在1968年发现座头鲸并为其歌声录音，还发现一些鲸鱼物种可以相距遥远仍可彼此沟通。
We don't know for sure, but we do know that every species that is removed … results in some weakening of the ecosystem.
我们完全不知道，但我们知道，每一种物种的灭绝······结果都是在某种程度上对地球生态系统的削弱。
But for some well-known varieties, such as the giant golden orb weavers, the last time a new species was discovered was in the 19th century.
但对于一些著名的蜘蛛，如巨型的金丝圆蛛，是近一次有新的物种被发现要追溯到19世纪。
That knocks on the head an alternative explanation for coat patterns, namely that spots are some form of signal between animals of the same species.
这对关于表皮图案的另一理论解释是当头一击，此种解释认为斑点是同一动物种群的共有标记形式。
RECREATING dinosaurs may be the stuff of science fiction—but scientists have for some years been able to extract information from the remains of species that no longer walk the Earth.
重构恐龙或许只是科幻素材，但是这些年来科学家们已经能够从那些不再行走在地球上的物种的遗体中筛选出信息。
For instance, it's still not known why only some chiton species have eyes, or how the creatures are able to use the same material to make both their eyes and their shells.
例如，为什么只有一些特定种类的石鳖才有眼睛，还有它们是如何用同一种物质构建眼睛和甲壳的。
There is doubtless a case for banning other types of food, such as some types of caviar and some species of whale.
我们无疑有理由禁止食用其它食物，比如某类鱼子酱和某些种类的鲸。
Some environmental groups are criticizing Australia for its poor record on caring for endangered species.
一些环保机构对澳大利亚在保护濒危物种方面的不良记录进行了指责。
If we carry on the way that we are, we're looking at a really high risk of extinction for some of these shark species within the next few decades.
如果人类继续这样的捕杀行为，那么这些鲨鱼种群在几十年内灭绝的风险将相当高。
Some gorilla species are close to extinction, warns the International Union for Conservation of Nature. Photograph: guardian.
国际自然保护联盟警告，某些大猩猩种群正濒临灭绝。
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。
Some men have been worthy of a better century, for every species of good does not always triumph.
有的人应该生在更好的时代，因为善良美好的东西并非总是获得胜利。
A model that had a single common ancestor and allowed for some gene - swapping among species was even better than a simple tree of life.
一个拥有单一共同祖先且允许物种间部分基因彼此交换的模式甚至更优于树形生命模式。
Researchers speculated that, for the disease to spread so far so quickly, birds must have helped. Some species could carry the disease and pass it on to mosquitoes, which would then infect humans.
由于它的传播范围广，传播速度快，那时的研究者们推测是鸟类在从中作梗，他们认为某些鸟类能携带病毒并把它传给蚊虫，之后，蚊虫将病毒带给人类。
Researchers speculated that, for the disease to spread so far so quickly, birds must have helped. Some species could carry the disease and pass it on to mosquitoes, which would then infect humans.
由于它的传播范围广，传播速度快，那时的研究者们推测是鸟类在从中作梗，他们认为某些鸟类能携带病毒并把它传给蚊虫，之后，蚊虫将病毒带给人类。
应用推荐