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.
How Did Birds Lose Their Teeth And Get Their Beaks? Study Offers Clues
Multiphase progenetic development shaped the brain of flying archosaurs
How Birds' Large Brains Helped Them Outlive Dinosaurs, Latest Science News and Articles
This ancient bird rocked a head like a T. rex
Eurasia Review – Page 956 – Eurasia Review
Bird brains left other dinosaurs behind
Why 'bird-brained' may not be such an insult after all, Birds
Paleontology News - Page 18 of 44 - SciTechDaily
If birds evolved from dinosaurs, why do their back knees work opposite from each other? - Quora
Fossil bird's skull reconstruction reveals a brain made for smelling and eyes made for daylight
Does anybody remember this? : r/Dinosaurs
What are some good resources for animal behavior/animal intelligence/convergent evolution of animal intelligence? - Quora
Paleontology News - Page 18 of 44 - SciTechDaily
How scientists found there's still some 'dinosaur' inside bird eggs – Hartford Courant