"The name denoted strength and power, and it tied in to the city's meatpacking tradition and the Chicago Amphitheater's (first home court of the Bulls) proximity to the famed Chicago Stockyards. The one-syllable directness of the Bulls was also in line with Chicago's other team nicknames-Bears, (White) Sox, Cubs, and (Black) Hawks."
The above is from the official NBA website.
http://www.nba.com/bulls/news/behind_the_name.html
No they didn't change their name. They are still called the Chicago Bulls.
The South African rugby team known as the bulls was founded in 1938. The full name of this team is the Vodacom Blue Bulls.
Bulls
The New York Red Bulls got their name by being acquired by the Red Bull GmbH in 2006. You can learn more about the New York Red Bulls at the Wikipedia.
The running of the bulls takes place each year in Pamplona, where people run from bulls that have been released. There is no previous name for this event, it has always been called the running of the bulls.
Prosiers
usualy the contracter that owns the bull will name the bull
It was spanish day. If you saw the Heat's last game against the bulls, the bulls jerseys said los bulls.
A name given to a male cow is bull. Bulls is also a small town and farming area, near Palmerston North, New Zealand.
Run bulls
Irish staffy
golden eagle