to honor individuals at the UA, as well as after home football victories, over any team except other Arizona schools. In December 2020, it was announced that at the request of the U.S. Navy, who still officially owns the bell, and in the interest of preservation of the historic artifact, that the bell would no longer be rung.
=== Arboretum ===
Much of the main campus has been designated an arboretum. Plants from around the world are labeled along a self-guided plant walk. The Krutch Cactus Garden includes the tallest Boojum tree in the state of Arizona. Two herbaria on the university campus are referred to as "ARIZ" in the Index Herbarium.
The campus also boasts hundreds of olive trees many of which were planted by Prof. Robert H. Forbes. Many of these trees are over a hundred years old.
== Organization and administration ==
The University of Arizona, like its sister institutions Arizona State University and Northern Arizona University, is governed by the Arizona Board of Regents or the ABOR, a 12-member …
