"[A]s they're starting that swim upwards they... unfluff their feathers and... release... a coat of bubbles... [T]hose bubbles... are inducing . It's just like the same reason a golf ball has dimples, the bubbles are reducing the drag on the penguin and a penguin that is producing bubbles can travel 50% faster... So it stands a much better chance of getting past the leopard seals now, onto the land."