Home / Non Fiction / Key Stage 2/3 / Natural World / Amazing Animal Engineers Amazing Animal Engineers Publisher : Raintree Author : Leon Gray ISBN : 9781474702218 Lab Code : 4456 Number of pages : 32 ATOS Book Level : 5.3 Points Value : 1 Series: Amazing Scientists £8.99 £4.50 Out of stock Categories: Accelerated Readers, Middle Years - Accelerated Reader, Non Fiction, Natural World, Natural World Description Animals build an incredible array of structures in which to sleep, raise young, or catch prey. Some structures involve excavating in subsoil or wood, others involve construction underwater, and some are fixed to trees. Polar bears dig out caves in the snow to protect themselves from the coldest weather. Spiders spin webs of incredibly strong silk to ensnare prey. Prairie dogs dig underground `towns’ that can house hundreds of families.