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Strange as it may seem, a bird bigger than Big Bird once lived above the Arctic Circle. The flightless bird, known as Gastornis , roamed Ellesmere Island next to Greenland about 50 million years ago, even during the twilight months of winter.

A new study finds no evidence of a widespread surge in total, violent or property crime in large U.S. cities in the aftermath of the highly publicized police shooting of Michael Brown. But the research does show the overall rate of robberies across the country has increased, as has the murder rate in certain cities.

A child’s perception of an adult’s trustworthiness can affect his or her willingness to resist a small, immediately available reward in order to obtain a larger reward later, a new University of Colorado Boulder study has discovered.

Five community-led projects from across Colorado will explore air and water quality and sustainable energy development with support from the latest round of grants from the AirWaterGas Sustainability Research Network based at the University of Colorado Boulder. The grants aim to improve understanding of the risks and benefits of oil and gas development as identified by community organizations.

The first direct evidence that humans played a substantial role in the extinction of the huge, wondrous beasts inhabiting Australia some 50,000 years ago -- in this case a 500-pound bird -- has been discovered by a University of Colorado Boulder-led team.

They have been at if for decades, these two sleuths from ¶¶Òõ¶ÌÊÓƵ-Boulder, using their expertise in plant forensics to help investigators solve crimes, often murder. And now the pair, emeritus professors Jane Bock and David Norris, have teamed up on a new forensic plant science book expected to aid detectives, lawyers and judges around the world in better understanding and solving crimes.

The United States could slash greenhouse gas emissions from power production by up to 78 percent below 1990 levels within 15 years while meeting increased demand, according to a new study by NOAA and University of Colorado Boulder researchers.

Even with a slowdown in new business filings in Colorado during the fourth quarter of 2015, employment in the state is expected to expand over the first and second quarters of 2016, according to a University of Colorado Boulder report released today by Colorado Secretary of State Wayne Williams.

A panel discussion examining parental choice in public education will be held from 6 to 7:30 p.m. in the Canyon Theater at the Boulder Public Library, 1001 Arapahoe Ave. It is free and open to the public.

The Center for the Study and Prevention of Violence (CSPV) at the University of Colorado Boulder today released an independent fact-finding report examining the events and circumstances leading to the 2013 fatal shooting at Arapahoe High School and offering recommendations for improvements in school safety.