Share the knowledge!
Key Facts In This Video
Hummingbirds are considered dinosaurs, although some flying "dinosaurs" aren't actually considered dinosaurs. 00:16
During the time of the dinosaurs, there were many "winged lizards". 01:26
Birds evolved from two-legged land animals. 02:04
Wake up with the smartest email in your inbox.
Our best articles a few times a week.