JOHANNESBURG (AP) — Jane Goodall, who turns 80 this year, knows how to work a crowd.

In a packed auditorium, the elegant primatologist from Britain whooped like the chimpanzees she first studied in Tanzania in the early 1960s. She hugged an academic just like, she said, chimps do. She talked about her crush, as a “romantic little 10-year-old,” on Tarzan, the fictional figure raised by apes.