These small, furry creatures may seem mild mannered. Meek. Even cute. Squirrels are our quiet co-habitants in our busy, crazy world. We see them as they run across our streets, nest in our suburban canopies and pause to gnosh on an acorn or two in our parks. Forget everything you thought you knew about your backyard neighbor. Because behind their mild-mannered exterior is a super-powered animal built for agility, endurance, intelligence and survival.