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In this lavishly illustrated, first-ever book on how spider webs are built, function, and evolved, William Eberhard provides a comprehensive overview of spider functional morphology and behavior related to web building, and of the surprising physical agility and mental abilities of orb weavers. For instance, one spider spins more than three precisely spaced, morphologically complex spiral attachments per second for up to fifteen minutes at a time. Spiders even adjust the mechanical properties of their famously strong silken lines to different parts of their webs and different environments, and make dramatic modifications in orb designs to adapt to available spaces. This extensive adaptive flexibility, involving decisions influenced by up to sixteen different cues, is unexpected in such small, supposedly simple animals. As Eberhard reveals, the extraordinary diversity of webs includes ingenious solutions to gain access to prey in esoteric habitats, from blazing hot and shifting sand dunes (to capture ants) to the surfaces of tropical lakes (to capture water striders). Some webs are nets that are cast onto prey, while others form baskets into which the spider flicks prey. Some aerial webs are tramways used by spiders searching for chemical cues from their prey below, while others feature landing sites for flying insects and spiders where the spider then stalks its prey. In some webs, long trip lines are delicately sustained just above the ground by tiny rigid silk poles. Stemming from the author’s more than five decades observing spider webs, this book will be the definitive reference for years to come.
Spiders, objects of eternal human fascination, are found in many places: on the ground, in the air, and even under water. Leslie Brunetta and Catherine Craig have teamed up to produce a substantive yet entertaining book for anyone who has ever wondered, as a spider rappelled out of reach on a line of silk, “How do they do that?” The orb web, that iconic wheel-shaped web most of us associate with spiders, contains at least four different silk proteins, each performing a different function and all meshing together to create a fly-catching machine that has amazed and inspired humans through the ages. Brunetta and Craig tell the intriguing story of how spiders evolved over 400 million years to add new silks and new uses for silk to their survival “toolkit” and, in the telling, take readers far beyond the orb. The authors describe the trials and triumphs of spiders as they use silk to negotiate an ever-changing environment, and they show how natural selection acts at the genetic level and as individuals struggle for survival.
A determined little spider named Walter is trying to make a sturdy web that will stand up to the blustery wind. The webs he makes at first are woven in special shapes--a triangle, a square, a circle--but they are still wibbly-wobbly. Can Walter make a web that is both wonderful and strong? This simple, vibrant adventure is a lively companion to our two previous Tim Hopgood "first books": Wow! Said the Owl, about colors; and Hooray for Hoppy!, about the five senses.
The best classes have a life of their own, powered by student-led conversations that explore texts, ideas, and essential questions. In these classes, the teacher’s role shifts from star player to observer and coach as the students ▪ Think critically, ▪ Work collaboratively, ▪ Participate fully, ▪ Behave ethically, ▪ Ask and answer high-level questions, ▪ Support their ideas with evidence, and ▪ Evaluate and assess their own work. The Spider Web Discussion is a simple technique that puts this kind of class within every teacher’s reach. The name comes from the weblike diagram the observer makes to record interactions as students actively participate in the discussion, lead and support one another’s learning, and build community. It’s proven to work across all subject areas and with all ages, and you only need a little know-how, a rubric, and paper and pencil to get started. As students practice Spider Web Discussion, they become stronger communicators, more empathetic teammates, better problem solvers, and more independent learners—college and career ready skills that serve them well in the classroom and beyond. Educator Alexis Wiggins provides a step-by-step guide for the implementation of Spider Web Discussion, covering everything from introducing the technique to creating rubrics for discussion self-assessment to the nuts-and-bolts of charting the conversations and using the data collected for formative assessment. She also shares troubleshooting tips, ideas for assessment and group grading, and the experiences of real teachers and students who use the technique to develop and share content knowledge in a way that’s both revolutionary and truly inspiring.
This book introduces readers to the science behind spider webs. Students learn about the uses of spider silk and the different purposes of different kinds of webs. Vivid photographs and easy-to-read text aid comprehension for early readers. Features include a table of contents, an infographic, fun facts, Making Connections questions, a glossary, and an index. QR Codes in the book give readers access to book-specific resources to further their learning. Aligned to Common Core Standards and correlated to state standards. Cody Koala is an imprint of Pop!, a division of ABDO.
This user-friendly guide helps you untangle the mystery of spider webs and demystify the many purposes of silk, featuring over 40 species of spiders and their webs.
This book links the molecular evolution of silk proteins to the evolution and behavioral ecology of web-spinning spiders and other arthropods. Craig's book draws together studies from biochemistry through molecular genetics, cellular physiology, ecology, and behavior to present an integrated understanding of an interesting biological system at the molecular and organizational levels.
Learn about the many intriguing aspects of spiders, including their body parts and structure, their habitat and how it supports them, and how they use webs to catch their next meal. Captions point out key visual details that readers can glean from the book's photographs, and chapter headings assist readers with locating information and main ideas. In addition, readers will find text features such as a labeled photo diagram, glossary, and index in the back of the book.
A close-up look at some familiar species we might find in our own houses as well as more exotic ones that live in tropical rain forests or make their homes underwater.