In this photo released by NSW Parks and Wildlife, a lost humpback whale calf swims around a yacht in the Pittwater, north of Sydney Harbour Wednesday, Aug. 20, 2008. The calf seems to think the yachts are its mother and will likely die within days if it doesn't find another mother to adopt it. The 1- to 2-month-old calf was first sighted Sunday in waters off north Sydney, and on Monday tried to suckle from a yacht, which it would not leave. Rescuers towed the yacht out to sea, and the calf finally detached from the boat, but the creature returned to an inlet near Sydney Tuesday morning. (AP Photo/NSW Parks and Wildlife)