Ever wondered what the world would be like without spiders, how the human story would differ if our species evolved to have gills, and what could have been if our vision developed to be more like Eagles eyes?    Even if you haven't ever wondered about any of that stuff, join Macklin, Matt & Danny; they're sure that you'll enjoy the wackiness that they uncovered throughout this chapter.   WCHB Edited by @Mia Darnell