TY - BOOK AU - Spilsbury,Richard TI - Animal variation and classification T2 - Living processes SN - 9780750296335 U1 - 590.1/2 PY - 2015/// CY - London : PB - Wayland KW - Animals KW - Classification KW - Juvenile literature KW - Variation N1 - Introducing classification -- Variation and evolution -- How to classify -- Invertebrates -- Vertebrates -- Classifying common birds N2 - Explains how our animal classification system works and looks at how scientists use it to identify and group animal species, explores the variation between and within animal species and discusses how and why such variations have occurred ER -