Any guess as to what this man from a Heifer project in southern Mexico is doing? Leave your guess and check back Friday morning for the answer.

UPDATE: In the photo below, Neftali Guellen is wetting down mushroom "logs"—blocks of organic waste material like corncobs and coffee pulp inoculated with mushroom spores. After several weeks, edible mushrooms sprout from the surface, which Guellen harvests and sells from his home. It's just one part of a Heifer project in the coffee-growing communities of Chiapas that is trying to alleviate seasonal hunger and poverty during the "thin months" between coffee harvests.

Photo by Russell Powell

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Heifer International

Heifer International is a nonprofit, non-governmental organization working with communities to end hunger and poverty while caring for the Earth.