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The University of Delaware, founded in 1743, offers over 100 academic majors; its distinguished faculty includes internationally known scientists, authors and teachers.

Yahoo! Answers is a new way to find and share information. You can ask questions on any topic, get answers from real people, and share your insights and experience.

Home page of the National Human Genome Research Institute, the arm of the U.S. National Institutes of Health dedicated to advancing human health through genetic research.

The Union of Concerned Scientists is the leading science-based nonprofit working for a healthy environment and a safer world through a combination of independent scientific research and citizen action.

PTC develops cutting edge product lifecycle management (PLM) tools, 3D design software, and dynamic publishing solutions. Find out why the most innovative companies choose PTC.