The Denver Broncos are notorious for having thunderstorms throughout the fall and winter that is Thunder storming the field. Thunder is a purebred Arabian gelding that acts as the club's mascot.

Catch up quick: "Iron horse" is a 19th-century term for a locomotive. The proposed logos showed a train, with the word "thunder" evoking the sound of of an engine charging over the tracks.

Grand Rapids applied for — and was denied — an exemption for its 'Thunderhawks' mascot, and has pushed back against what it ...