In the wake of agreeing to a two-week ceasefire on April 7, both the United States and Iran are claiming victory in their war. Each says the same thing: We held out and the other guy blinked first. In ...

Although genetically modified mice have huge potential for the analysis of gene function, the creation of such mice via homologous recombination in embryonic stem cells (ESCs) is a tedious process. A ...

Investigation into the mysterious death of a British teenager examines both a troubling demise and the city’s criminal ...