Mother’s Fatty Diet Makes Baby Monkeys Afraid of Mr. Potato Head

Discover, November 19 2010.

What monkey mothers eat has a large impact on how skittish their offspring act in stressful situations like stranger danger–or the presence of a Mr. Potato Head in their cage. According to researchers, even normal monkeys find the toy’s large eyes to be “mildly stressful.”

But baby monkeys from mothers who were fed a high-fat diet (over 35 percent of calories from fat, modeled after a typical American diet) had a much stronger reaction to an encounter with the spud man, and also spazzed in the presence of an unknown human. The study, presented at the Society for Neuroscience annual conference, found that in stressful situations, the female offspring were more anxious and the males more aggressive. Read More >