Animal enrichment supplements the expert animal care the NPRCs provide and includes social housing, climbing structures, swings, hammocks, mirrors, music, videos and more. These options encourage the monkeys to socialize, play, exercise and stay curious. Wild monkeys spend a lot of time searching for their food, so the NPRCs provide foraging opportunities for our research animals. The monkeys pick seeds, fruit, nuts and other snacks out of artificial turf mats, food puzzles, chew toys and tubs of shredded paper. Employees also spread chew toys with yogurt and peanut butter, and fill treats with low sugar frozen juice blocks.