Capturing Carbon - July 2008 An eighth-grader's science fair project prompts her scientist father to develop a new way to pull excess carbon dioxide out of the atmosphere.
Epigenetics - July 2007 Our lifestyles and environment can change the way our genes are expressed, leading even identical twins to become distinct as they age.
First Primates - July 2008 Our most distant primate ancestors, which took the stage shortly after the dinosaurs left it, were tree-dwellers the size of mice.