One of the main themes of evolution is the belief that certain types of DNA sequences freely mutate and develop new functions that allow for new creatures...
The big-picture story of evolution tells that, over millions of years, natural processes produced millions of species from one or a few primitive progenitors....
One-cell creatures called ciliates are expanding our knowledge of genome dynamics and complexity. Now a newly sequenced ciliate genome reveals unimaginable...
Speciation may be defined as the separation of populations of animals or plants that resemble one another closely and originally able to interbreed—into...