The Context of Human Genetic Evolution
The debate on modern human origins has often focused on the relationship between genes and fossils.

Promiscuity May Be Key Factor In Immune System Evolution, Study Suggests
A new study indicates that evolution of the immune system may be directly linked to the sexual activity of a species.

The First Laugh: New Study Posits Evolutionary Origins Of Two Distinct Types Of Laughter
In an important new study from the forthcoming Quarterly Review of Biology, biologists from Binghamton University explore the evolution of two distinct types of laughter -- laughter which is stimulus-driven and laughter which is self-generated and strateg

Sex, cleaner of genomes
The finding supports a hypothesis that sex is an evolutionary housekeeper that adeptly reorders genes and efficiently removes deleterious gene mutations. The study also suggests sexual reproduction maintains its own existence by punishing, in a sense, ind