/news/tags/mary-ann-raghanti Mary Ann Raghanti en-US Copyright Mon, 19 Feb 2018 10:04:00 GMT /news/health-science/2018-02-19/monogamy-and-smiles-are-the-results-of-a-neurochemical-change-that-made-us-human One of the most enduring questions in science is how did we become human. Fossil bones of our ancestors tell part of the story. But researchers at Kent… Mon, 19 Feb 2018 10:04:00 GMT /news/health-science/2018-02-19/monogamy-and-smiles-are-the-results-of-a-neurochemical-change-that-made-us-human Jeff St. Clair