epa06217917 A penguin at the Aquazoo Loebbecke Museum in Duesseldorf, Germany, 21 September 2017. The Aquazoo Loebbecke Museum is an unique combination of a zoo, an aquarium and a natural history museum. The evolution of biological diversity is the main focus of the exhibition with 25 themed rooms: following the development of the first water borne organisms, their spread throughout the sea, their colonisation of freshwater habitats, to their settlement in varying terrestrial habitats. EPA/FRIEDEMANN VOGEL