A single Neanderthal gene slipped into lab mice triggered unexpected changes in their skeletons. Scientists in Japan uncovered traits echoing long-lost human cousins.

The human organism is far too complex and unpredictable to program like a computer and optimize for longevity.

A small genetic change makes the bacterium that caused the plague less fatal but possibly more transmissible, allowing for ...

Scientists have documented the way a single gene in the bacterium that causes bubonic plague, Yersinia pestis, allowed it to ...

Parasitic worms that infect humans are not interbreeding with those that infect cattle as previously thought. This is good ...

Songbirds who make the arduous flight from their nesting sites in northern boreal forests to warm, southern climates in the winter may be rewarded for their journey with greater genetic diversity.

including distributions and changes in genotype and phenotype frequency in response to the processes of natural selection, genetic drift, mutation and gene flow.

For many, the aroma of a fresh cup of coffee signals the start of a productive day. But for others, sipping on coffee late at ...

Researchers have identified a remarkably small but critical piece of genetic code that helps determine how brain cells connect, communicate, and function. The discovery not only deepens our ...

A new study proves that a type of genetic element called 'introners' is the mechanism by which many introns spread within and ...

Environmental factors such as lifestyle and the medications you take influence the effects your genes have on your body — and can clarify how diseases develop.