Test your visual skills with this optical illusion, where a hidden penguin blends in among brightly colored toucans. You have ...

the Humboldt penguin of Chile and Peru, as well as four from New Zealand — the yellow-eyed, white-flippered, Fiordland crested and erect-crested penguins. Soon after, the African penguin was listed as ...

there is a lot more to these spectacular seabirds than meets the eye. There is also a longstanding scientific question over whether royal and macaroni penguins are two separate species or if the ...