Wildlife Specials: The Spy

Penguins: Waddle All the Way, the Journey (1x1)

: 01, 2013

Emperor penguins cross a treacherous frozen sea to reach their breeding grounds. They must lay their eggs without touching the ice. Rockhoppers brave the world's stormiest seas, only to face a daunting 300-foot cliff. Humboldts are strange tropical penguins that have rarely been filmed. The hard work for all the penguins finally pays off when their tiny, vulnerable chicks begin to hatch.