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In page Angelo State University:

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Two costumed mascots, Roscoe and Bella, appear at most athletic events and many community activities, where they lead cheers and interact with students and fans.[1] Roscoe has appeared at many games since the 1960s courtesy of the Pi Kappa Alpha fraternity, one of the oldest and most active fraternities on the ASU campus. Bella made her debut in October 2010, supported by the Delta Zeta she appears with Roscoe and the ASU cheerleaders at most athletic and student-body events. Both students portraying the mascots are sworn to everlasting secrecy to retain the Ram legacy.[2]