If you are eating lunch in Pittsburgh or Dallas, you might grab a sandwich and a Snapple to go. But should you get transferred to Paris, you will probably eat like the French: multicourse sit-down lunches plus a glass of wine.

But it turns out people are not the only ones who make monkey-see-monkey-do cultural shifts. Monkeys, and apparently several other species, do, too.

In a clever, groundbreaking study published Thursday in the journal Science, researchers showed that when Vervet monkeys roam, they act in when-in-Rome fashion.

Wild Vervet monkeys, trained to eat only pink-dyed or blue-dyed corn and shun the other color, quickly began eating the disliked-color corn when they moved from a pink-preferred setting to a blue-is-best place, and vice versa.