Innovative new technologies may enable scientists to manipulate ancient and modern DNA to safeguard ecosystems from invasive organisms, help species recover their genetic diversity, and address issues of climate change. However, as geneticist George Church, Robert Winthrop Professor of Genetics at Harvard Medical School, will discuss, while resurrecting mammoths could help maintain the Arctic permafrost, such developments require thoughtful consideration of complex system interactions and potential unintended consequences. This Harvard Museum of Natural History program will take place Wednesday, October 15, beginning at 6 pm in the Geological Lecture Hall at 24 Oxford Street in Cambridge. Free and open to the public. Free event parking available at the 52 Oxford Street Garage.