Scientists Finally Discovered Why There Were No Pocket-Sized Dinosaurs

There were small dinosaurs. Microraptor is a good example. It was about the size of a crow, weighed roughly 1 to 3 pounds, and was only about 2½ feet long. They don’t get much smaller than that. There were no frog-sized dinosaurs. No dino hamsters. Scientists have wondered why for years, and might have finally…