New species are merely mutants of earlier ones.
新物种不过是早先物种的突变体。
New species of snakes, however, are much rarer.
然而，新品种的蛇则要稀有得多。
Somewhat later, the migrants returned, bringing new species with them.
不久之后，移民回来了，还带来了新的物种。
A new species of snake has been discovered on a remote island in the Bahamas.
巴哈马群岛的一个偏远小岛上，人们发现了一个新品种的蛇。
New species of fauna populated the Mediterranean when the old migrants returned.
当“旧移民”返回地中海时，地中海又出现了新的动物物种。
These turned out to be highly diverse: it seems that ants are continually domesticating new species.
"结果表明这些（菌类）是高度多样化的：似乎蚂蚁在不停地培育新品种。
I began collecting newspaper articles about new species, new monkey, new spider..., and on and on they appear.
我开始收集报纸上关于新物种、新型猴子、新型蜘蛛的文章，它们不断出现。
I know of scientists who conduct marine life surveys and identify new species every time they go out on a dive.
我知道有科学家在从事海洋生物调查，并在每次潜水时都能发现新的物种。
The common ancestor is, however, too recent for the new species to be a remnant of the first human excursion from Africa.
然而，共同的祖先对于新物种又太现代，而不能作为来自非洲的人类首次远足的遗迹。
Future research should look at the behavior and ecology of these worms, to understand what caused the new species to arise.
未来的研究应该看看这些蠕虫的行为与生态学，以了解新物种的出现是由什么造成的。
Future research should look at the behavior and ecology of these worms to understand what caused the emergence of new species.
未来的研究应该看看这些蠕虫的行为与生态学，以了解新物种的出现是由什么造成的。
Scientists made an unexpected discovery in the waters south of New Guinea in 2005: a new species of dolphin called the snub-fin.
2005年，科学家们在新几内亚的南部水域得到了一个意想不到的发现：一种叫做矮鳍的海豚新物种。
Following each mass extinction, there is a sudden evolutionary burst as new species develop to fill the ecological niches opened by the event.
在每一次物种大灭绝后，都有一次突然的进化爆发，因为会有新物种出现来填补灭绝创造的生态位。
Slow, continuous change may be the norm during periods of environmental stability, while rapid evolution of new species occurs during periods of environment stress.
缓慢的、持续的变化可能是环境稳定时期的常态，而新物种的快速进化发生在环境压力时期。
Snake expert Robert Henderson, from the Milwaukee Museum of Natural History, said, "Worldwide, new species of frogs are being discovered and described quite regularly."
密尔沃基自然历史博物馆的蛇类专家罗伯特·亨德森说：“在世界范围内，人们经常发现和描述新的青蛙种类。”
Commenting on the find, snake expert Robert Henderson, from the Milwaukee Museum of Natural History, said, "Worldwide, new species of frogs are being discovered and described quite regularly."
密尔沃基自然历史博物馆的蛇类专家罗伯特·亨德森对这个发现评价称：“在世界范围内，人们经常会发现和描述新种类的青蛙。”
She conjectured the existence of a completely new species.
她推测有一个全新物种存在。
That's got to be a new species.
它绝对是个新物种。
New species of trees took over.
新树种接手。
Explorers hope for new species.
探险家希望在此找到新的物种。
Yet new species are cataloged every day.
而新的物种每天都被不断的发现并分类。
It could therefore be considered a new species.
至此它可以被当作一个新的种类了。
New species of dolphin discovered in Australia.
新种海豚于澳大利亚被发现。
They expect to find several hundred new species.
他们希望再找到数百个新物种。
The result of this would be the formation of new species.
这样的结果就将导致新物种的产生。
His grandfather, and others, believed new species evolved.
他祖父那代人是相信新品种是演变而来的。
Schuster is one of the biologists who found the new species.
舒斯特正是发现新物种的生物学家之一。
Schuster is one of the biologists who found the new species.
舒斯特正是发现新物种的生物学家之一。
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