Mature ironwoods around Tucson make the oldest saguaros look like mere youngsters by comparison. “Estimates show some (ironwood) trees to be 800 years old, and it is likely that they live even longer, ...

Interior Secretary Ryan Zinke issued an executive order Friday about hunting and target shooting in national monuments that could lead to a reversal of a 4-year-old target-shooting ban at Ironwood ...

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Ironwood Pharmaceuticals, Inc. is a biotechnology company, which engages in the development and commercialization of Gastrointestinal (GI) products. It operates through the Human Therapeutics segment.