speciation

常见例句

双语例句

• Microevolution looks at changes within species overtime — changes that may be preludes to speciation, the origin of newspecies.
  物种的微观进化随时都在发生——变化可能导致物种形成，这就是新物种的起源。
• Some researchers have argued that speciation rates, both terrestrial and marine, could be much higher in the tropics, making them a "cradle" of biodiversity.
  一些专家认为，在热带地区的陆地和海域，物种形成的机率更高，这样就使热带地区成为了生物多样性的摇篮。
• Researchers usually link speciation to some sort of physical barrier, such as a river or mountain, which divides populations and causes them to evolve independently.
  研究人员通常把物种形成与某种物理屏障相联系，如河流或山脉，这种屏障分隔种群，使它们独立进化。

权威例句

• The dominant theory of speciation is that it results from a slow accumulation of genetic mutations.
  ECONOMIST: Genes are not all there is to heredity
• Boeke says that when more of the yeast genome is synthesized, researchers will be able to use the system to study evolution and speciation.
  FORBES: Yeast Goes Synthetic
• So the epigenetic hypothesis of speciation has an edge.
  ECONOMIST: Genes are not all there is to heredity
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