Final answer:
Among chimpanzee and bonobo populations, prolific tool use is more associated with chimpanzees, particularly in environments like the Fongoli savanna where they use sticks as hunting spears.
Step-by-step explanation:
Among chimpanzee and bonobo populations, tool use is more prolific among chimpanzees. This is evident from studies reflecting on their behavior in different environments. The Fongoli chimpanzees in Senegal are known for hunting bush babies using sticks as spears, which is a sophisticated form of tool use not typically observed in bonobo populations. In contrast, bonobos, though closely related to both chimpanzees and humans, are more known for their peaceful and egalitarian societies rather than their tool use. Moreover, the Fongoli chimpanzees demonstrate that both male and female chimpanzees are involved in tool-assisted hunting in their savanna habitat, which is a divergence from their rainforest counterparts where only males hunt, and without tools.