Stanley the Saw-shelled Turtle is concerned because all of the animals that are part of his food chain seem to be disappearing from his creek. On closer investigation, Stanley realises the problem is a result of human activity. Luckily, someone else has seen the problem too and can help. Themes include pollution, team work and food chains. This Story Book features: A glossary of technical or tricky words. Factual information about the saw-shelled turtle. A fact-file of a food chain found in a creek. Two free downloadable worksheets. Australian Science Curriculum links. Stunning Australian photography. The Steve Parish Reptiles & Amphibians Story Book range was written by award-winning author and primary school science teacher Rebecca Johnson, who has written more than 60 books for children. Her Steve Parish Insect story book range won the 2014 Whitley Award for Best Children's series.