Do polar bears eat penguins? Can penguins fly? (Yes!) How do animals survive in the cold? It's all in here. The read a story about one polar animal that comes back to haunt its hunters: 'The Ghost Whale'.This book is part of 'Thunderbolts', a series of 24 levelled reading books covering popular non-fiction topics. Published by Ransom Publishing, a specialist in books for struggling and reluctant readers, the 24 full-colour titles offer progression over four levels and low level language. Each book features a non-fiction section together with a fully illustrated fiction story on the same topic. Polar Animals is part of Set Four.