An Amazing Evolutionary Path: Penguin

Synopsis
The South Island of New Zealand, known as a penguin paradise, is home to the largest number of penguin species. In fact, the island is believed to be where the very first penguins appeared. Little penguins, which at night slightly lean forward when walking back and forth between their nest and the sea, share features associated with early penguins, and forest-dwelling Fiordland crested penguins are believed to have gradually learned to breed in caves to avoid predators. This episode takes a look at the penguins' lives and reveals the secrets of how the island turned from being their birthplace to becoming their paradise.