"There is a sixth great extinction," warns a conservation expert

With her signature scarf draped over her shoulders and her silver hair pulled back from her face, Jane Goodall radiates calm — even through our slightly blurry video call. In a Viennese hotel room, she is surrounded by a press team and a small group of filmmakers documenting her latest speaking tour.

The famous primatologist and conservationist sits on a chair with a high back that exceeds her slim figure.

I see on my screen that behind her on the shelf is her monkey, Mr. H.

The toy was given to her almost 30 years ago by a friend and she traveled the whole world with it. Dr. Goodall is now 90 years old and she and Mr. H are still on the road.

"I'm a little exhausted," she admits. "I came here from Paris." And then I go to Berlin, then to Geneva. On this tour, I am talking about the danger to the environment and some remedial measures,” he says. (Victoria Gill, more at bbc.com)