Roughly speaking, then, it's tempting to think of natural selection as the accelerator of evolution, driving different or divergent traits and constraint as the brakes, maintaining or conserving ...

Roughly speaking, then, it’s tempting to think of natural selection as the accelerator of evolution, driving different or divergent traits and constraint as the brakes, maintaining or conserving ...

Darwin thought that evolution took place over hundreds ... the finches for over 25 years and have witnessed natural selection operating in different ways under different circumstances.

To grow a crop in different places — a dry place ... to appreciate this cause-effect relationship between natural selection and evolution. When natural selection occurs, a population evolves.

This is a key mechanism of evolution that leads to the ... and found that natural selection varies in strength on different individual genes from year to year. They discovered that in stable ...

Those that lack variation have constraint, impeding evolution even if it ... ScienceAlert said natural selection maintains this length difference called “anther separation.” ...

Natural selection ... so they make no difference. The interesting question is which mutations affecting our bodies or behaviour have spread because of drift rather than selection, but this is ...

But Lamarck’s ideas were still an essential stepping stone that inspired Darwin’s ideas of natural selection. Evolution can produce different patterns over time. We can label the three main ...

DNA molecules are made with four different chemical bases ... the rate of neutral evolution. Realising evolution doesn’t only happen by natural selection makes it clear the process isn’t ...

He began contemplating while aboard HMS Beagle, but it took several years before he came up with his theory of evolution by natural selection. The finches – once they had been identified as different ...

When evolution skeptics want to attack ... with its many parts and astounding abilities. Through natural selection, different types of eyes have emerged in evolutionary history -- and the human ...