A Detroit News tie to zoo's train The zoo's 2.5-mile miniature railroad was created with a $20,000 donation from William E. Scripps, son of James E. Scripps and president of The Detroit News.

Additionally, the first 995 people received a free train ride. On Sunday, Aug. 6, the zoo will host its anniversary concert with country music singer Hannah Ellis.

Things kick off on Tuesday, where the zoo will open an hour early at 8 a.m. with free admission for the first 95 non-member guests and a free one-way train ride for the first 995 guests.

Some also worry that a new passenger train planned by the zoo, to run along its north border that abuts neighborhoods, would add to the din. "I didn't move here to live next to Disney World," said ...