This week on The Sydneyist it’ll be all slime and slither. We’re talking Sydney’s native freshwater eels. Is it true that they can travel overland? And that they migrate all the way to the Coral Sea to spawn? How do the babies know where to return? In studio with Elizabeth Farrelly tonight to answer these and other slippery questions is marine biology Professor Iain Suthers from the University of NSW.