Just turned on the Rose Bowl parade......  the Indiana University band went by.... There was a guy in a costume..... looked like a black bull dressed in a Indiana University outfit.  I got to thinking..... the Indiana mascot is a "Hoosier".  What's up with the black bull mascot?   Is there a connection that I am missing?  Can someone spell it out for me?

edit:  I googled it and I found the answer to my question.