Stories: In Defence of the Flying Fox: Flying Foxes are destroying trees in the Botanical Gardens in Sydney and Melbourne, but is relocating them a viable solution? Indoor air: CSIRO scientists survey the air inside our homes to assess potential health risks. Fundamentals with Bernie Hobbs - The Einstein diet: Celebrities aren't the only stars shedding kilos. Mysteries of the Emperors: Unlocking the secrets of the enigmatic Emperor of the icy continent.