> For cats it's better to fall off a higher floor than a lower one because they have more time to turn feet down and increase their air drag thus getting under the terminal velocity and allow them to survive the fall.

True, and there's been at least one, probably many, actual study done that came to that conclusion.

Small nitpick (I'm sorry, I couldn't stop myself!), their action doesn't get them "under the terminal velocity," it lowers what their terminal velocity is. It's just the speed at which the wind resistance is enough to prevent further acceleration by gravity. It's terminal as in the end of something (acceleration), not terminal as in the predicted death of the something.