October 17, 2013 Conventional wisdom about early human evolution is that several species arose in Africa. But a skull found in the former Soviet state of Georgia could upend this idea. The discovery suggests that there may have been more variety in a single species than previously suspected.
October 14, 2013 Chemical compounds discovered in a mosquito fossil from Montana offer scientists clues to what the very old insect ate before it died. The bug's final blood meal was likely from a bird, researchers say, and could lead to other hints about ancient Earth.
October 8, 2013 Nearly a year's worth of rain was dumped on parts of the state in four days this fall. The downpour from the heavens created a slurry on the mountainsides that scrubbed away soil, trees, boulders and buildings. Scientists say the flooding may have been a once-in-a-thousand-years event.
September 13, 2013 For decades, DNA has been used to identify victims of crime, even victims of war crimes. But there's no international standard for using DNA analysis for identifying bodies after a disaster. So some scholars are calling for an international group with the same reach as weapons inspectors.
August 30, 2013 A decade ago, cranes that had never before migrated followed the lead of an ultralight plane to learn the route south. Several generations later, old cranes are teaching young birds to navigate that same route. It's a clue that migration is a combination of nature and nurture, researchers say.
August 6, 2013 The federal government's top climate scientists announced Tuesday that 2012 was really hot — among the top 10 hottest years on record and the hottest ever in the U.S., with rising sea levels, less Arctic sea ice and warmer oceans. And the American Geophysical Union called humanity "the major influence" on global climate change.
August 1, 2013 All told, the scientist has discovered 131 new species of animals in his career, and some are so scary-looking, he's named them after demons. It's a task that's taken more than 30 years of crawling through rain forests to accomplish, and Longino says he's still only scratched the surface.
July 24, 2013 Deep-sea natural gas reservoirs sometimes contain oil, but experts say it's highly unlikely Tuesday's accident in the Gulf of Mexico would leak anything like the BP spill. And there are signs suggesting the only thing crews have to deal with is leaking gas.
July 21, 2013 Fire is a natural part of the western landscape, and a push over the last century to eliminate fires has threatened the habitats that some plants and animals need. In a Montana valley, fire scientists are trying to show that they can actually save wilderness by burning it.