When I was preparing to write a profile of Dr Jane Goodall, I never expected it to become a tribute. Goodall died at the age of 91 on 1 October. She was in Los Angeles as part of a North American speaking tour; the week before she had been in New York City, a keynote speaker at an event occurring alongside the United Nations General Assembly’s annual session. She maintained a daunting calendar, often travelling some 250 days a year to share her message of environmental conservation and…

