Trilobites: How Dinosaurs Swapped Terrifying Teeth for Bird Beaks A look at the dinosaur species that began the transition from teeth to the beaks we see in birds today. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:A Leading Cause for Wrongful Convictions: Experts Overstating Forensic ResultsWary of Chinese Espionage, Houston Cancer Center Chose to Fire 3 ScientistsGlobal Wealth Gap Would Be Smaller Today Without Climate Change, Study FindsDavid Thouless, 84, Dies; Nobel Laureate Cast Light on MatterThese Otters Are Popular Pets in Asia. That May Be Their Undoing.Q&A: Sea Sponges: Nature’s Disinfectants
