"What was shocking to me was, I thought that in the last several years as the number of studies have increased that it would have gotten a lot better. And the surprise to me was it wasn't that much better. So, it's still at roughly 80% of studies that look at genetic associations with disease are focused on people of European ancestry." - Sarah Tishkoff This week on Living Lab Radio: Nature multimedia reporter Shamini Bundell runs through recent science headlines , including evidence of the day