And again, Frankfurt Zoological Society now exists. It was started again by Grzimek in the late ’50s. He became interested in the Serengeti. He learned to fly. He bought a Dornier airplane and, together with his son, Michael, he flew, I think in 11 days, from Frankfurt to the Serengeti. And he studied the migration because, at that time, Serengeti was the only national park in what was British Tanganyika. And the British wanted to cut away the eastern part of the Serengeti, which is now Ngorongoro Crater area. And there was an outcry among conservationists, this might hinder the migration of about 1.2 million wildebeest.
