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Jane Goodall had no training in science when she arrived in Africa from England. But she was a very good observer. In Goodall’s first encounters with chimpanzees, the animals shrieked and ran away from her. Slowly, though, she gained their trust by seeing them again and again. Goodall spent years watching how chimpanzees behaved in the wild. She was the first to discover that chimpanzees hunt and eat meat. She was also the first to see a chimpanzee use a stick to catch and eat insects. Until that time, people believed that only humans made tools.