One fall day, a Swiss engineer was hiking with his dog. Soon the dog was covered in cockleburs, which held fast to its fur. After years of study and experimentation, the engineer invented Velcro, with hooks and loops just like the cockleburs. What would life be like without Velcro? In Animal Tech: Fur & Claws, readers will learn about six life-changing technologies that have been inspired by mammals. They will follow the stories of the scientists and engineers who have harnessed mammals' abilities, developing them into powerful technologies that have shaped our world.