Molecular evolutionary biologist Masatoshi Nei says Darwin never proved natural selection is the driving force of evolution — because it isn't. In a cavernous concert hall, before an eager audience of ...

In the 1800s, a conflict between the founding fathers of evolution divided the community. Charles Darwin believed sexual selection drove the variation in butterfly colors and patterns of males, while ...

This volume is based on the National Academy of Sciences′ Colloquium on the Variation and Evolution in Plants and Microorganisms: Toward a New Synthesis 50 Years after Stebbins. The articles appearing ...

As mutation affects essentially every aspect of biology, the development of a unifying theory for mutation-rate evolution is highly desirable. There is much to be explained. For although the ...

The unexpected discovery of a new type of genetic variation suggests that natural selection -- the force that drives evolution -- is both more powerful and more complex than scientists have thought.

The biology teacher's pedagogical toolbox is evolving. Bright colors, replicating computer code and a digital Petri dish bring evolution science to life for students. Students often learn best when ...

Skeletons of the early horse-relative Eohippus (left) and modern Equus (right). From Animals of the Past by Lucas. During the early 20th century many biologists were considering a variety of ...