Dinosaurs Avoided Total Extinction By Getting Smaller And Smaller
dinosaur take on many dissimilar shape and sizes , but paleontologists are learning their success had nothing to do with their iconically massive body . If anything , their evolutionary success would appear to have come from their longstanding ability to keep shrinking . Just need the birds . Top image : NebezialviaDeviant Art . Shortly after the dinosaurs made their appearance some 220 million years ago , they rapidly evolved and spread out into many different forms ....