'I'm a blue whale, I'm here': researchers listen with delight to songs that hint at Antarctic resurgence

Audio collected with underwater microphones suggests numbers at least stable after centuries of industrial whaling left only a few hundred aliveFollow our Australia news live blog for latest updatesGet our morning and afternoon news emails, free app or daily news podcastCenturies of industrial whaling left only a few hundred Antarctic blue whales alive, making it almost impossible to find them in the wild.New research suggests the population may be recovering. Australian scientists and international colleagues spent two decades listening for their distinctive songs and calls, and have found the whales - the largest animals ever to have lived - swimming across the Southern Ocean with growing regularity.Sign up for Guardian Australia's free morning and afternoon email newsletters for your daily news roundup Continue reading...