I've seen that on docs. In my time on Earth we've learned more about them than we knew back in the day. Maybe an ancient connection between feathered and scaled egg layers. Evolution is very conservative. Our eye has been passed through God know how many species and improved over half a billion years at least. First, being able to detect light when the Earth's skies cleared and dark could mean a predator was between you and the sun, and then evolving to see more and more. But our eyes are color-blind compared to the eyes of birds according to Wikipedia. Of course flying predators like hawks have to see things at huge distances or they are out of business. We didn't need that. Instead, millions of years ago we began evolving fingers and thumbs etc for throwing things at what we hunted until today no birds' claws could compete with us on a lap top. Though all our dexterity was created for throwing etc, evolution uses it today for completely different purposes.