If you tried roaring like a grizzly bear how do you think that might sound or look?

I did when backing a pack of dogs off my cat. I'm sure I looked insane

I could probably mimic it; i'd just have to hear one first for reference 😅

It would sound exactly like a 2 pack a day smoker coughing his brains out.
Also it would look exactly like that as well.

One cannot do that it is far deeper and louder than the human lung can produce