They may look cute, but some of them are hardened criminals! Watch this extract from BBC One's Frozen Planet Series. Learn about Emperor Penguins with National Geographic here (you might have to click on video and sound). What can Penguins Teach Us about Earth? is a report by ABC News. Tracking Penguins in Antartica from 400 Miles Up is a very informative video by the Wall Street Journal. And if you haven't met Cookie the Little Penguin at Cincinnati zoo, here's another chance!