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Question 94·Easy·Central Ideas and Details

Wildlife researcher Jane Goodall revolutionized primatology by spending years living among chimpanzees in Tanzania’s Gombe Stream National Park. Unlike earlier scientists who conducted brief laboratory studies, Goodall carried a simple notebook into the rainforest each day and recorded what she saw. This long-term, in-the-field approach revealed that chimpanzees make and use tools, form lasting social bonds, and even wage wars. By documenting these behaviors, Goodall overturned the idea that such complexity distinguished humans from other animals.

According to the text, what aspect of Goodall’s research enabled her to challenge earlier assumptions about chimpanzees?