Saudi Arabia is facing mounting criticism over the disappearance of missing Saudi journalist Jamal Khashoggi. On Twitter, President Trump said he spoke to Saudi Crown Prince Mohammed bin Salman, who denied any knowledge of the journalist's fate. CBS News chief White House correspondent Major Garrett reports.
Soldiers who were fifth graders when this war began in 2001 now direct Afghan forces in an operation to clear ISIS-held villages
Unicellular diatoms are able to adapt their behavior to different external stimuli based on an evaluation of their own needs. In experiments, Seminavis robusta diatoms directed their orientation either towards nutrient sources or mating partners, depending on the degree of starvation and the need to mate.
An international team of earth scientists has linked the establishment of the Mekong River to a period of major intensification of the Asian monsoon during the middle Miocene, about 17 million years ago, findings that supplant the assumption that the river incised in response to tectonic causes.
A new statistical method that tests for equivalence, rather than difference, has a role to play in dismantling gender and publication biases in science. The authors believe the technique has broad applicability across disciplines and can help remove publication bias against ''negative results,'' opening the door to a broader investigation of natural phenomena.