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" Silk and the evolvable nature of the genes that dictate it have enabled spiders to stake a claim in the land for hundreds of millions of years and they are likely to do so for hundreds of millions of years to come " (p. 190). Spiders and their silk are the products of millions of years of evolution, and, according to Leslie Brunetta and Catherine Craig, they provide us with a unique peephole into the world of biological evolution. Spider Silk teaches the reader about evolutionary theory while explaining the evolution of spiders, their silk, and the intricacies of various types of webs. From an early possible common ancestor to the gamut of modern day spider species, the authors paint a vivid picture of spider life in the last 400 million years in a mere 229 pages and at the very least, make readers reconsider their aversion to spiders. But this book is so much more than just a book on spiders; it explains evolutionary theory beautifully and keeps the reader enticed throughout the book with fascinating stories about everything from the etymology of the term Arachnid to explaining exactly how accurate E.B. White was when he wrote Charlotte's Web in 1952—and yes, they even discuss Spider Man. Overall, Spider Silk is fascinating and is written for a large audience, so this book is recommended for virtually anyone that would like a better understanding of evolution while learning about the fascinating lives of spiders. Spider Silk starts strong before chapter one—with the preface. The reader is prepped for the rest of the book by building an intellectual foundation with evolutionary theory and spider anatomy, eventually coupling the two together just before the reader reaches chapter one. Chapter one, entitled " Fossils, " starts where any good story about evolution should begin: in the fossils. Spiders, along with scorpions, mites, ticks, and horseshoe crabs make up the subphylum Chelicerata (trigonotarbids and sea scorpions were once members of this subphylum, but have since gone extinct). make up the Phylum Arthropoda. The term Chelicerata comes from the unifying feature of this subphylum—chelicerae (jaws) (members of this subphylum all lack antennae as well). Chelicerates are thought to have most likely descended from aquatic arthropods that lived during the Cambrian period. Leslie Brunetta and Catherine Craig use their creative imagery to paint a picture of the colorless earth 400 million years ago when the …

A Story Woven in Time: How Spider Silk Can Exemplify Evolutionary Theory