We saw a little David Attenborough video about Penguins in Biology the other day. It's amusing how they bob up and down in the water like boats, but only with their heads above water. Then when they dive and shoot up to the surface popping out and ladnign on anything. We saw them slide along on their bellies for a bit, fly into snow drifts, and crash into each other. Then they stood up, shook their heads, and waddled off.