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Tiger quoll sleeping at the window of the nocturnal animals exhibit at Sydney Wildlife World
Cheirurus sp., middle Ordovician age, Volkhov River, Russia
Underwater World
Like most world-changing inventions, the printing press of fifteenth-century Europe took advantage o
Power-tower in Southern California, largest such facility in the world
Descending limbs of Hadley cells are the sites of the world’s major deserts