Monkey
The word monkey refers to a wide variety of small, tree-dwelling primates. Different species of monkeys have historically lived across Africa, Asia, and South America. In the Fourth World, North America and Europe lacked any species of monkeys, except those brought from other continents for zoos and experimentation. But during the collapse of civilization, as the people who ran those zoos and laboratories abandoned them and let them fall into disrepair, many monkeys escaped and found niches in new bioregions. Later, as tropical jungle spread across more of the world, wild monkeys moved north and south from the equator. One can now find monkeys almost everywhere in the Fifth World.
#Human relations
Some people of the Fifth World have a predator-prey relationship with monkeys, hunting them for their meat. Others, however, do not eat monkeys, either due to religion (Islam and Hinduism) or because of their uncanny similarity to humans.
#Monkey People
Because monkeys have such great climbing skills, humans who hunt monkeys must become just as good at climbing. They likely learn the art of tree-climbing from a young age. They may even live in a network of tree houses, linked by rope bridges woven from living vines! Or maybe they live on the ground and have simply mastered climbing high up into the trees. They may shoot at monkeys with poison blow-darts, or with bows and arrows.
Another strategy for hunting monkeys would involve an alliance with a local dog pack. Human hunters may work with feral dogs to ambush a pack of monkeys, with the dogs running into the jungle to chase the monkeys toward where the humans wait with bows and arrows. Of course, the human and dog hunters would share the meat afterward. Such a community would likely ally with feral dogs for more hunts than monkeys, and always maintain the friendly relationship that humans and dogs have shared for thousands of years.
A community specializing in relationship with monkeys may live near communities that do not hunt monkeys, creating a distinction between the communities. This both avoids conflict (because they have at least one resource they will not compete over) and potentially creates it (because the community that does not eat monkeys may consider the community that does immoral).
Since monkeys came to Europe and North America quite recently, humans living on those continents may find themselves less inclined to hunt monkeys than those living on continents where monkeys have always lived. On the other hand, because they came so recently, they may play the role of an invasive species, reproducing too much and too quickly for the fragile new tropical ecosystem to handle. Humans living in areas where monkeys pose that kind of problem may find themselves more inclined to hunt them, to maintain balance and preserve a place in the ecosystem for squirrels and other native small mammals.