Dolphin pod rescue in Brazil is internet hit
9 March 2012 Last updated at 10:15 GMT
Local people and tourists in Arraial do Cabo, in Rio de Janeiro state, helped a pod of 30 dolphins swim back out to sea after they got caught in the area's strong current and became beached.
Footage of the event has received hundreds of thousands of views on YouTube since being published on 5 March. Dozens of people entered the sea and dragged the struggling mammals by their tails back into deeper water.