Humpback whales are filmed bubble-net feeding by a drone pilot off the Sapphire coast in southern New South Wales.
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This video was taken last year but has only recently been confirmed by Australian researchers who studied the mammals' behaviour.
Bubble-net feeding is a tactic whales use to catch their prey. They deliberately blow bubbles and form a circle around their prey that acts like a net, before they leap through the middle and finally get a hold of their prey.
Normally, the bubble-net feeding technique is seen in the northern hemisphere. This was the first time such a sight has been seen in Australia.
This was the largest humpback whale congregation ever seen in Australia, with an estimated 33 humpback whales seen in this video.