Dolphins have started lending a hand (or fin) to a small group of fishermen in Brazil.
The startling human-dolphin relationship occurs in Laguna, Brazil, where the bottlenose dolphins will herd mullet fish towards the fishermen and then - with a flick of their heads and tails - splash the water to let the men know their haul is ready.
The behaviour has been going on for generations, according to the local fishermen, and researchers have spent the last two years observing the behaviour - and trying to figure out what is in it for the sea-dwellers.
Link, rest of article and video: http://www.dailymail...whats-them.html
