Each night after dinner, we give the chimpanzees treats in the form of “night bags.” These are brown paper bags with a small amount of sugar-free cereal, dried fruit, salt-free nuts, seeds and sometimes dried pasta or other goodies. Our beloved volunteers make these bags up 21 or so at a time to ensure we have a supply for a few nights. Negra in particular likes this snack and sometimes asks for her night bag before dinner is even over. She asks by loudly clapping and sometimes extending an arm out. One night last week when J.B. was serving dinner, I snapped a few photos of Negra making her request, then enjoying her night bag.