Photo de stock - 19 February 2020, North Rhine-Westphalia, Duesseldorf: Lars Leonhard, the university's district gardener, is standing on a ladder and looking at flower cones of a rare woolly plant. For the past twelve years, a rare species of wool-mill, a conifer that was thought to have died out over 50 million years ago, has been growing under the 18-metre-high glass dome in the university's Botanical Garden. The living fossil was only rediscovered in 1994 in a gorge near Sydney (Australia). Female and male flower cones are now growing on the branches for the first time. A unique chance for botanists to breed new specimens of the plant dinosaur. Photo: Horst Ossinger/dpa. - Duesseldorf/North Rhine-Westphalia/Germany