Rapid size change in introduced fruit fly indicates it is evolving as it invades North America
...ern. This observation of very rapid evolution may prod ecologists to realize that invading species are not set in stone but can evolve quickly in response to their new environment, thereby changing the dynamics of their interactions with native species. Previously scientists studying invasions have larg...Gene that directs fate of many embryonic stem cells identified
...as, the team found, is essential and sufficient to prod embryonic stem cells into making endodermal cells. These, in turn, give rise to many internal organs, as well as the lining of the lungs and gut. Ambitious new efforts to restore the insulin-producing capacity in people with type 1 diabetes rely on i...Science's breakthrough of the year: Illumination of the dark, expanding universe
...can distort the brain's information processing and prod someone into mental illness. Researchers hope to understand brain biases underlying mental illnesses well enough to design drugs to repair them. Climate Change Impacts: Global warming was no longer an abstract concept in 2003. Scient...... paper, and the role of the photo as both a memory prod and seemingly corroborating piece of evidence. "The findings support the general theoretical perspective that memories aren't things that are stored somewhere in your head," says Dr. Lindsay. "Memories are experiences that we can hav...Experimental drug shown to block mutant protein causing blood disease
...he glitch allows a continuous stream of signals to prod blood cells into an uncontrolled frenzy of division and growth. The overproduction of white blood cells in MPD damages organs and generally turns into an acute leukemia that can be fatal. The report appears in this week's Online Early Edition of the ...