Humpback nuzzled saviors in thanks after they untangled her from crab lines, diver says A humpback whale freed by divers from a tangle of crab trap lines near the Farallon Islands nudged rescuers and flapped around in what marine experts said was a rare and remarkable encounter. ... The 45- to 50-foot female humpback, estimated to weigh 50 tons, was on the humpbacks' usual migratory route between the Northern California coast and Baja California when it became entangled in the nylon ropes that link crab pots. It was spotted by a crab fisherman at 8:30 a.m. Sunday in the open...