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 ...

The human intestinal tract harbours the vast majority of microorganisms residing in or on our bodies 1; their genetic content and biochemical transformation capabilities are hundreds of times larger ...

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 ...

The human eye can distinguish as many as 10,000 different colours but is far less sensitive to variations in intensity 1, meaning that colour is highly desirable when interpreting images. However, ...

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 ...