Input (grade 13): Goodallâ s research at Gombe Stream is best known to the scientific community for challenging two long-standing beliefs of the day: that only humans could construct and use tools, and that chimpanzees were vegetarians.
Output (grade 12): Goodallâ s research at Gombe Stream challenged two long-standing beliefs of the day: that only humans could build and use tools, and that chimpanzees were vegetarians.