The A23a iceberg - more than twice the size of Greater London - is on the move, travelling along what is known as "iceberg alley" towards South Georgia.
Antarctica s miniature moss forests reveal shifts in climate across thousands of years abc.net.au - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from abc.net.au Daily Mail and Mail on Sunday newspapers.
Satellite tracking supports whale survival
Extensive satellite tracking has revealed important new knowledge about the little known pygmy blue whale population of Southern Australia.
Marine biologists have extensively tracked the movements of foraging and migrating blue whales (Balaenoptera musculus brevicauda) along the Australian continental shelf on a journey towards breeding grounds in Indonesia as part of conservation efforts for the endangered species.
A team of researchers led by Flinders University Associate Professor Luciana Möller tracked the movements of 13 of the blue whale subspecies to determine important environmental habitats along foraging grounds and migratory routes in Southern and Western Australia, which incorporate major shipping and fishing routes, and areas targeted for oil and gas exploration - all activities known to negatively impact whale behaviour.