Urban planning in the Brazilian rainforest

A vast experiment in urban planning is underway in Brazil's urban jungle metropolis of Manaus. At the center of the urban expansion is the construction of a 2.2-mile bridge that is to connect the city to industrial cities and towns across the Rio Negro—the largest left tributary of the Amazon.

Study: A mother’s voice does wonders for girls

During stressful times, girls might turn to ice cream and chocolates for comfort. But, according to a study by the University of Wisconsin-Madison, something else can comfort them during times of stress: their mother's voice.