,

Emma Sherratt1, Jenna Crowe-Riddell1, Alessandro Palci1,2,3

  • 1School of Biological Sciences, The University of Adelaide, Adelaide, South Australia, Australia.

概括

生态转变驱动了海蛇 (Elapidae) 的快速头骨形状演变. 这种形态变化先于增加的物种化速率,在重大进化变化过程中揭示了异步多样化.

相关概念视频

Convergent Evolution01:54

Convergent Evolution

Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.
31.4K
Speciation Rates01:07

Speciation Rates

Overview
22.6K
The Evidence for Evolution02:55

The Evidence for Evolution

Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
47.6K
What is Evolutionary History?02:35

What is Evolutionary History?

Scientists record evolutionary history by analyzing fossil, morphological, and genetic data. The fossil record documents the history of life on Earth and provides evidence for evolution. However, both fossil and living organisms offer evidence that outlines Earth’s evolutionary history.
42.9K