Ingenious Bubble Net Fishing - Nature's Great Events - BBC

The humpback whales of Alaska have developed an ingenious method of fishing for herring, but it only works if they all co-operate. Subscribe to BBC Earth: http://www.youtube.com/subscription_center?add_user=BBCEarth BBC Earth YouTube Channel: http://www.youtube.com/BBCEarth BBC Earth Facebook http://www.facebook.com/bbcearth (ex-UK only) BBC Earth Twitter http://www.twitter.com/bbcearth Visi ...