A new study theorizes that evolution ticks at different speeds, especially when a big group of organisms first appears.

Studying the genome of thale cress, a small flowering weed, led to a new understanding about DNA mutations. (Pádraic Flood) A simple roadside weed may hold the key to understanding and predicting DNA ...

Yet modern biology has revealed that cells are preternaturally sophisticated assemblages — literally automated, miniaturized factories. How could the evidence have been overwhelming but now orthodoxy ...

For a long time, evolutionary biologists have thought that the genetic mutations that drive the evolution of genes and proteins are largely neutral: they're neither good nor bad, but just ordinary ...

Biologists are closing in on a puzzle that seems to turn classic evolutionary logic inside out, yet may be so common that it ...

Darwinian thinking has been challenged many times, starting with co-discoverer of natural selection Alfred Russel Wallace, who disagreed with some aspects of Charles Darwin’s arguments, but was ...

In the article "To Effectively Discuss Evolution, First Define 'Theory'" in the May 12 issue of The Scientist (R. Lewis, page 13), it was stated that the term "theory of evolution" should be replaced ...