Why Dinosaurs Couldn't Shrink | Science News

Dinosaurs never got tiny—not because they couldn’t, but because early mammals already claimed the small ecological niches. New research reveals that even the tiniest non-bird dinosaurs weighed around a pound, locked out of mouse-sized lifestyles by mammalian competition. Fossils don’t support widespread tiny dinosaurs, and birds broke free by evolving flight—unlocking new niches and shrinking down successfully. Listen in comfort:Get a discount on a Soli Pillow: http://solipillow.com/discount/dnn. Advertise on DNN:[email protected] This is an automated, high-level news summary based on public reporting.Report issues to [email protected]. View sources & latest updates:https://sources.thednn.ai/ebdde3953c9ff032