Based on an analysis of the genomes of more than a dozen flightless birds, including an extinct moa, a team led by Harvard researchers found that while different species show wide variety in the protein-coding portions of their genomes, they appear to turn to the same regulatory pathways when evolving flight loss.

Geneticist David Reich discusses DNA findings that show how migration shaped Europe and southern Asia, and that “No population is, or ever could be, pure.”

To understand the strain that space flight places on the body, NASA-affiliated researcher Brinda Rana has been examining the molecular changes in the twin astronauts Scott and Mark Kelly for five years.

To understand the strain that space flight places on the body, NASA-affiliated researcher Brinda Rana has been examining the molecular changes in the twin astronauts Scott and Mark Kelly for five years.