Off the coast of Alaska, USA, National Oceanic and Atmospheric Administration officials are able to disentangle a 5-month-old humpback whale from fishing line, with both the watchful mother, who had stayed close by, and her baby swimming freely away.

http://www.adn.com/2011/08/19/2022846/noaa-rescuers-free-whale-calf.html
http://juneauempire.com/local/2011-08-18/noaa-rescues-humpback-whale-calf