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Perez, and an inmate at another prison, Justin Addler, even conference called with a third man using smuggled cellphones to discuss "pooling their financial resources" to get a discount on heroin.
• At least 17 people appeared in court Wednesday in Indianapolis after about 300 FBI agents fanned out across the state and made arrests. A judge ordered them to remain in custody. Only one prison guard was among those charged, though the indictment alleges several were involved. Prosecutors declined to say if more charges were expected.
• Few details about the defendants were included in the court documents, though prison records show Perez is serving time for murder and attempted murder at Westville Correctional Facility in northern Indiana, while Addler is housed at central Indiana's Pendleton Correctional Facility on convictions including drug dealing.
• The indictment details a series of alleged phone calls the two men placed to people outside the prisons, including to oversee the purchase of "large amounts" of heroin from a source in Chicago. They also instructed people how and where the drugs should be sold, prosecutors allege.
• ___

• PHILADELPHIA (AP) -- The Philadelphia Zoo is letting some animals take a walk on the wild side -- sort of.
• Species like monkeys, lemurs and orangutans can now use a set of enclosed trails on the 42-acre zoo to leave the confines of their exhibits and travel throughout the property.
• The network of protected pathways is designed to enrich the animals' lives by giving them the ability to explore and see and smell new things. It's also aimed at enhancing the visitor experience, allowing zoo-goers to see creatures in unexpected places -- such as in the trees.
• "We believe that the opportunity to travel, to explore, to choose to go toward things that are interesting, move away from things, really control their own experience ... is going to be incredibly enriching for the animals in our care," said Andrew Baker, the zoo's chief operating officer.
• Last week, the zoo opened the Great Ape Trail, which allows orangutans to roam along an overhead walkway through a tree grove. Small monkeys and lemurs have used the Treetop Trail for about a year, scampering through mesh enclosures sus

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