New research challenges the one-level view of evolution, showing natural selection works on individuals and groups together.

Sociobiology, the discipline founded on Darwin's theory of group evolution, is in theoretical disarray. In a new article evolutionary scientists usher in a new era in evolutionary science. "Although a ...

To judge whether group selection is useful for understanding behavior in banks, then, we first have to define it clearly, or at least choose one of the three definitions of group selection that are ...

“Although a high standard of morality gives but a slight or no advantage to each individual man and his children over the other men of the same tribe...an advancement in the standard of morality will ...