许多物种都是同宗演变而来的。
甲虫在濒危动物物种名单之上。
这一物种的雄性有一条白色的尾巴。
在环印度洋沿岸的海域有这一物种。
This species is found in coastal waters around the Indian Ocean.
这个物种的雄性和雌性几乎无法分辨。
The male of the species is almost indistinguishable from the female.
她推测有一个全新物种存在。
荒野协会游说国会批准《濒危物种法》。
The Wilderness Society lobbied Congress to authorize the Endangered Species Act.
这个地区有不少于100个的不同物种。
大熊猫是一种濒危物种。
该疾病能够在不同的哺乳类物种之间传播。
The disease can spread from one mammalian species to another.
因栖息地正受到破坏这一物种已濒于灭绝。
This species has nearly died out because its habitat is being destroyed.
许多物种都终生配对。
濒临灭绝物种的名单中列有将近600种鱼。
成立这个协会是为了保护濒危物种不致灭绝。
The society was set up to preserve endangered species from extinction.
这些物种中的许多已经消亡或是正濒临灭绝。
Many of these species have vanished or are facing extinction.
地图上标明了这一物种在全世界的分布情况。
The map shows the distribution of this species across the world.
这一物种极为罕见。
自然资源保护主义者预测，数以百计的物种可能会从这个地区消失。
Conservationists calculate that hundreds of species could be lost in this area.
既然它们能够而且确实可以成功杂交繁殖，它们就不能被归为不同的物种。
Since they can and do successfully inter-breed, they cannot be classed as different species.
其他物种也是如此。
海狸鼠是濒危物种。
这种划分为鱼类和其他海洋物种的分区物种形成奠定了基础。
This division set the stage for allopatric speciation among populations of fishes and other marine species.
新物种不过是早先物种的突变体。
这种雉鸡和这种珍珠鸡是亲缘物种。
美洲驼和骆驼是近亲物种。
有许多特征使这一物种与其他物种区别开来。
现代猫的直系物种原型是古代埃及的卡菲尔猫。
The direct ancestor of the modern cat was the Kaffir cat of ancient Egypt.
自然环境保护主义者大多致力于保持物种的多样性。
Conservationists are mostly wedded to preserving diversity in nature.
葡萄酒制造商们说他们已被谷物种植者的利益所左右。
Wine growers say they've been held hostage to the interests of cereal farmers.
物竞天择确保只有最适应环境的物种才得以生存下来，把基因传递给下一代。
Natural selection ensures only the fittest survive to pass their genes on to the next generation.
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