Elephants from the Ringling Brothers and Barnum & Bailey Circus stopped traffic Oct. 5 during their annual march to Boston's TD Banknorth Garden, where the circus will hold performances Oct. 6-15. The 10 elephants, together with 15 horses, 3 ponies and their handlers, followed a route that took them past MIT on Mass. Ave., above, and then along Memorial Drive. Photo / Donna Coveney

A version of this article appeared in MIT Tech Talk on October 18, 2006 (download PDF).