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Australia is in the grip of its worst wildfire season on record. The human death toll stands at 27, and some 2,000 homes have been destroyed across more than 10 million hectares of land — an area larger than Portugal. An estimated 1 billion wild mammals, birds and reptiles have perished. Michael Clarke, an ecologist at La Trobe University in Bundoora, Melbourne, has been studying the effect of fires on native ecosystems...
