If you've ever seen a penguin walking, you'll have seen it moves along with rather a comical motion swaying from side to side with each step like an upside down pendulum. This is a consequence of being a tall top-heavy animal with short legs
Penguins can come out of the sea onto rocky shores or slippery ice during rough weather - strong claws that can grip on to slippery surfaces efficiently make this look far easier than it is.
