Here are my Science Seeker Editor's Selections for the past week:

Science is really just kids play. Well, sort of. It turns out that when kids play, they "come up with general principles, akin to scientific theories, based on the data of their daily lives." Find out more at Discover Magazine's 80 Beats blog, where Ashley P. Taylor discusses this finding.

The history of social psychology, summed up neatly by decade by Melanie Tannenbaum. A great read: Mirror, Mirror on the Wall, How Does Psych Reflect Us All?

What Makes Chocolate So Irresistible? And how can you get a rat to eat way more M&Ms than is healthy? Joseph Stromberg discusses some new research at Smithsonian Magazine's Surprising Science blog.