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

Body hair has long been wrapped in myth, stereotype, and cultural judgment. Some populations are routinely described as hairier, others as naturally smooth, and these assumptions often get passed off ...

A new study has shown that person-to-person variation in antibody immunity plays a key role in shaping which influenza (flu) strains dominate in a population. The work, published today as a Reviewed ...