This non-fiction book explains how sea creatures have spines, stings and teeth and other means to protect themselves from hungry predators. Packed with stunning underwater photographs, there is much to entrance young readers.

* Green/ Band 5 books offer early readers patterned language and varied characters.

* Text type - Non-chronological report.

* A simple table at the end of the book can be used to check understanding and to recap information learnt reading the book.

* Curriculum links - Citizenship: Animals and us.

* This non-fiction book is paried with a playscript on a similar theme: Worm Looks for Lunch by Julia Donaldson.

This book is part of a book series called Collins Big Cat .

This book is aimed at children in primary school. This book is part of a reading scheme, meaning that it is a book aimed at children who are learning to read. This reading book uses the phonics method. This approach concentrates on teaching children how to map between sounds and spellings, allowing them to decode written words into their constituent sounds. Phonics skill thus involves being able to split the written word 'cat' into the phonemes /k/, /a/, /t/, and to map from letter 'c' to phoneme /k/, from letter 'a' to phoneme /ae/ and from letter 't' to phoneme /t/. Decoding skill is useful when reading unfamiliar words which use regular spelling sequences.

There are 24 pages in this book. This book was published 2012 by HarperCollins Publishers .

Andy Belcher is an international freelance photographer based in New Zealand. A specialist in adventure travel and underwater action. Angie Belcher's stories feature many of the dare-devil activities she has enjoyed, including white-water rafting, bungy jumping, scuba diving and caving. Jonathan was born in 1965, the son of a rig fitter and a primary school teacher. He first developed his skills as a writer and illustrator while studying architecture, illustrating poems and lyrics that he had written. After leaving college, he worked as an architect for several years, before pursuing a career in children's books. In addition to writing books such as Bringing Down the Moon, and Ruby Flew Too, he also paper-engineers pop-up books.