Today, being "birdbrained" means forgetting where you left your keys or wallet. But 66 million years ago, it may have meant the difference between life and death—and may help explain why birds are the only dinosaurs left on Earth.
Bird Brains Left Other Dinosaurs Behind
Birds' Crouching Gait Born in Dinosaur Ancestors
Why are birds the only dinosaurs that survived on Earth? •
Ask a Bird Nerd: 2021 A Year in Review, Get a quick rundown of some of the birdiest stories to hit the news., By Sand Ridge Nature Center
Bird Brain Evolution
Before dinosaurs could fly, some had flight-ready brains
Wonderchicken” – Origin of Modern Birds Revealed by Fossil From the Age of Dinosaurs
Why Birds Survived, and Dinosaurs Went Extinct, After an Asteroid Hit Earth, Science
Fearsome tyrannosaurs were social animals, study shows — Science Bulletin
Aztecs' at the Museum Volkenkunde, Leiden - The Archaeology News Network
How evolution made humans more like birds than other mammals
