Tui De Roy / Little blue / fairy penguin (Eudyptula minor) walking on pathway to nesting burrows, Neck Game Reserve, Bruny Island, Tasmania, Australia, December.

Frederique Olivier / Adelie penguin (Pygoscelis adeliae) jumping from ice edge into the sea, Antarctica.

Frederique Olivier / Emperor penguin (Aptenodytes forsteri) chick covered in clumps of snow sleeping on parent's feet in brood pouch, Antarctica, September.

David Tipling / Illustration of the Dodo (Raphus cucullatus) from Gleanings of Natural History by G Edwards 1758-64 published in London.