Bringing sea horses and kelp forests back to world s most iconic harbour miragenews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from miragenews.com Daily Mail and Mail on Sunday newspapers.
Sydney Harbour will be once more teeming with life thanks to living seawalls scientists hope will bring more penguins, seals, seahorses and turtles to the waterway.