(2nd best of 3) Sea Otter (Enhydra lutris) mother with nursing pup in the Morro Bay harbor, Morro Bay, CA. 27 Oct. 2008. Michael "Mike" L. Baird, Canon 1D Mark III, 600mm f/4 IS with circular polarizer, on tripod.  Female sea otters have two abdominal nipples, and float on their backs to nurse their pups.