April 25, 2017 - See stunning footage of Antarctica like never before - from the back of a humpback whale. Researchers attach the cameras via suction cups that are harmless to the whales. They record for 24 to 48 hours before falling off and floating in the water, where they can be tracked by GPS and retrieved. The video from the study has revealed that the whales feed in water far deeper than expected, and they may use their blow holes to create openings in the ice to breathe. Researchers also collect GPS data to track the whales, giving more clues into their movements and lives.Footage courtesy Ari Friedlaender / WWF-AUS, Charles Littnam