This unusual triumph of kids over grown-ups suggests that the brain’s capacity to consider the context of visual scenes, and not just focus on parts of scenes, develops slowly, say psychologist Martin Doherty of the University of Stirling in Scotland and his colleagues. Even at age 10, children lack adults’ attunement to visual context, Doherty’s team concludes in a paper published online November 12 in Developmental Science.

Several naturally occurring nuclear reactors have been discovered in Gabon, Africa. Groundwater flooding deposits of uranium ore made the reaction possible.