It’s always fun to catch one of the chimpanzees doing something he or she doesn’t usually do. Burrito doesn’t engage in much self-directed play with toys or objects. He’ll pick up a wooden block to chew on, or pass a scarf to a caregiver for a game of tug of war, but he doesn’t seem much interested in toys for their own sake. Today, though, he found a toy he couldn’t get enough of. I had to stop filming eventually, but he entertained himself for quite awhile.