Many Americans use social media to connect with one another, engage with news content, share information and entertain themselves. Explore the patterns and trends shaping the social media landscape.

This is an important study showing that people who are hungry (vs. sated) put more weight on taste (vs. health) in their food choices. The experiment is well-designed and includes choice behavior, eye ...

Contributed by Stephen W. Pacala, November 10, 2015 (sent for review August 19, 2015; reviewed by Gregg Marland, Steven C. Wofsy, and Mark D. Zoback) Past studies reporting divergent estimates of ...

Cell movement—for example, during embryogenesis or tumor metastasis—is a complex dynamical process resulting from an intricate interplay of multiple components of the cellular migration machinery. At ...