Answer
Yes, Jane Goodall has indeed used binoculars in her studies. Binoculars have been a crucial tool for her research on chimpanzees in the wild, allowing her to observe their behavior, interactions, and activities without causing disturbance. Through her extensive observations using binoculars, Goodall has made groundbreaking contributions to our understanding of chimpanzee social structures, tool usage, and communication, revolutionizing the field of primatology.