Final answer:
The Nittany Lion continues to be the mascot of Pennsylvania State University and has not been replaced since its adoption; no replacement occurred in 1907.
Step-by-step explanation:
The Nittany Lion has not been replaced and continues to be the mascot for Pennsylvania State University. The question alludes to a possible change in mascot in 1907, but the Nittany Lion has been the official mascot since it was chosen and has remained unaltered. The Nittany Lion symbolizes Penn State's athletic teams and is an emblem of school pride. While other schools, such as the University of Illinois, faced challenges and eventually changed their mascots due to concerns over cultural insensitivity -- with Chief Illiniwek being dropped in 2007 after Charlene Teters campaigned against its representation -- the Nittany Lion has not been subjected to such changes.