 With this sort of difficulty in mind, Brandt (1954) undertook his own anthropological study of Hopi people in the American southwest, and found issues for which there appeared to be serious moral disagreement between typical Hopi and white American attitudes that could not plausibly be attributed to differences in belief about nonmoral  facts.[25]  A notable example is the Hopi attitude toward animal suffering, an attitude that might be expected to disturb many non-Hopis: