Why can’t humans fly? Why are ants so strong? Why can’t elephants jump? Our shape and size controls what we can and can’t do. Find out how humans and animals are perfectly designed to live in their particular habitats, and discover the role that evolution has played in this.

• White/Band 10 books have more complex sentences and figurative language.
• Text type: A simple non-fiction book.
• Pages 30 and 31 explore the main themes from the book.
• Curriculum links: Science: Ourselves; Literacy: Explanations.
• This book has been quizzed for Accelerated Reader.

Collins Big Cat supports every primary child on their reading journey from phonics to fluency. Top authors and illustrators have created fiction and non-fiction books that children love to read. Book banded for guided and independent reading, there are reading notes in the back, comprehensive teaching and assessment support and ebooks available.

Collins Big Cat is a whole-school reading programme that provides complete support for primary reading. Children will become fluent readers through hundreds of high-quality fiction and non-fiction banded books by award-winning authors and illustrators. In-depth teaching resources support you in developing and assessing key reading skills at all stages from early reading through to phonics, to guided, whole-class and independent reading for more confident readers.