Bird-Hipped Dinosaurs Welcome! You are encouraged to register with the site and login (for free). When you register, you support the site and your question history is saved.The bone structure of bird-hipped dinosaurs, having pubic bones which point downward and toward the tail, help explain why paleontologists believe that they evolved independently of other dinosaurs. having pubic bones which point downward and toward the tail, help explain why paleontologists believe that they having pubic bones which point downward and toward the tail, helps explain why paleontologists believe that it with pubic bones which point downward and toward the tail, helps explain paleontologists' believing that it with pubic bones which point downward and toward the tail, help explain paleontologists' believing that it with pubic bones which point downward and toward the tail, helps explain why paleontologists believe that they Review Answer