According to wikipedia, Chimpanzee, often shortened to chimp, is the common name for the two extant species in the genus Pan. The better known chimpanzee is Pan troglodytes, the Common Chimpanzee, living primarily in West, and Central Africa. Its cousin, the Bonobo or “Pygmy Chimpanzee” as it is known archaically, Pan paniscus, is found in the forests of the Democratic Republic of the Congo. The Congo River forms the boundary between the two species.
According to this news story for first time, chimps seen making weapons for hunting apart from humans.
It is the first time that an animal other than a human has been directly observed in crafting a weapon for the purpose of hunting or killing.