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Just 7% of our DNA is unique to modern humans, study shows

WASHINGTON (AP) — What makes humans unique? Scientists have taken another step toward solving an enduring mystery with a new tool that may allow for more precise comparisons between the DNA of modern humans and that of our extinct ancestors. Just 7% of our genome is uniquely shared with...

Summer setback: COVID deaths and cases rising again globally

COVID-19 deaths and cases are on the rise again globally in a dispiriting setback that is triggering another round of restrictions and dampening hopes for an almost normal summer of fun. The World Health Organization reported Wednesday that deaths climbed last week after nine straight weeks...