| 释义 |
speciatedBNC¹⁷³⁹⁹⁵⁺²
基本例句
vi.物种形成原型speciate的过去式和过去分词 Only two of15 ammonite families survived this second extinction, says Dr Bucher, but within a million years those two had speciated into15, and ammonites had regained their former diversity.
巴彻博士说15种菊石生物中仅有2种逃脱了第二次灭绝事件，但在短短100万年内，这两种菊石再次分化成15种，恢复了往日的多样性。 yeeyan
A plausible reason is that all the dinosaurs had been killed off, except the line that evolved into birds, and the placental mammals speciated into the ecological niches that had been left vacant.
一个可能的原因是所有恐龙除进化为鸟的一支外都死掉了，胎盘类哺乳动物才在被空闲出来的生态龛中得以进化。 yeeyan |