as you say--"panther" (my first dog's name, incidentally)) roaring like the biggest, baddest African lioness east of Timbuktu. All hundred-n-twenty pounds of it.
Seriously--I had my doubts at first (I'd been taught the same as you)--but ultimately I had to accept what my eyes beheld & my ears beheared.
The Cougar ROARED!!!
mutu.