Macaques do have an important difference from humans where affect is concerned. Many, many objects and events in your world, from the tiniest insect to the largest mountain, cause fluctuations in your body budget and change your affective feelings. That is, you have a large affective niche. Macaques, however, don’t care about as many things as you and I do. Their affective niche is much smaller than ours; the sight of a majestic mountain rising in the distance doesn’t impact their body budget in the least. Simply put, more things matter to us.8
