Steller sea lion (Eumetopias jubatus) sleeping at a haul-out on Yasha Island, Point Gardiner, Admiralty Island, Southeast Alaska, USA.
The sea lions have such a thick coating of blubber to cushion their bodies that they can sleep just about anywhere and look very comfortable. It is a different matter when they are trying to haul their bulky bodies around with only their flippers to assist them. It involves a lot of huffing and puffing, heaving and swaying with much grunting and steam belching from their open mouths. They look like big sacks of blubber and bones being dragged across the rocks: in stark contrast to their fluid graceful motion underwater like huge flying fish.