speciation

常见例句

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。

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