Luis Pacheco-Cobos of the National Autonomous University of Mexico and his colleagues discovered this by following mushroom gatherers from a village in the state of Tlaxcala for two rainy seasons.

ECONOMIST: Men and women navigate differently

"It's quite remarkable to me that people are assuming that somehow we're at a new stage in political or institutional or economic development in Mexico, " said John Ackerman, a law professor at the National Autonomous University of Mexico and a visiting scholar at American University in Washington.

NPR: Mexico's President Gathers Power, Pushes Reform