Scientists and parents wonder whether tablets are all fun and games for toddlers.
FOLD IT A gene that only humans have can make the normally smooth outer layer of mouse brains develop folds similar to those in human brains (upper right center). The gene may have been important for the evolution of big human brains.
M. Florio and W. Huttner/Max Planck Institute of Molecular Cell Biology and Genetics
SUGAR RECALL Buff-tailed bumblebees (one shown) may merge memories of flowers that they’ve visited in the past, which may influence the blooms they explore in the future, a new study suggests.