[Video credit: CalSquirrels via Youtube]
"It might be that a squirrel's success in life is affected the same way as in people," states Lucia Jacobs, a University of California, Berkeley psychologist and an author of the new study. "By its ability to slow down and think a bit before it snatches at a reward."
Roughly half of the squirrels performed well on the tests. Other species, including the carnivorous dogs and wolves, performed better, but big-brained animals with the most complex diets, such as primates, did the best. And although the scientists didn't test humans, Duke University anthropologist Evan MacLean tells Livescience we'd perform about the same as the gorillas.