Final answer:
In the film 'The New Chimpanzees', chimpanzees use stick or twig tools to extract insects, leaf sponges for drinking, stone tools to open nuts, leaf umbrellas for protection, and leafy branches for social displays.
Step-by-step explanation:
In the film The New Chimpanzees, we observe several forms of tool use by chimpanzees which highlight their intelligence and adaptability. Some of the observed tools include: stick or twig tools for extracting termites or ants from mounds or tree bark, which involve the chimpanzees modifying twigs to fish for the insects in a remarkable display of problem solving. This was famously first documented by Jane Goodall in 1960, fundamentally changing the way we view primate intelligence. Additionally, chimpanzees have been seen using leaf sponges to soak up water from tree hollows for drinking, demonstrating their ingenuity in creating tools for specific purposes. They also use stone tools to crack open nuts or hard-shelled fruits, showcasing their strength and precision. Moreover, leaf umbrellas are constructed for protection against the elements, and leafy branches may be utilized for display or communication during courtship rituals, indicating a complex understanding of social behavior and environmental resource use. Studying these behaviors provides valuable insights not only into chimpanzee society but also into the potential behaviors of our early ancestors.