I've been hunting California's Eastern Sierras for over a quarter century...
Wildlife biologists insist (as if they actually knew) that there are 6,000 mountain lions in California. I've sort of kept my eyes open for the past quarter century, and haven't seen even the first footprint of one. I've seen plenty of bobcat tracks, bear prints, coyote prints, quail and chukkar "chicken tracks", rabbit prints, hiker tracks, but not even one couger track. From my evidence, I'd have to say they don't exist in this state,
except that one day, I stumbled onto a brilliantly camouflaged couger kill of a nice Mulie w/ his antlers...
It bothers me that I can have been so active in a region for so long, and have seen so little evidence of a major preditor. I guess female joggers in this state can't make that claim

Cougars love to ambush 'em.
Neither have I seen any bigfoot tracks, so they must not exist, either.
What makes you guys really think you even want to catch up with a nocturnal biped which sees in the dark like a cat, and which is so darned scarey?! There wasn't a single soul running around away from camp at sundown in Zone D8 this year. Not one person. Why is that?
I was there. No one active after dark. No one. All I'm gonna say, is, that when everyone is doing the exact same thing, there's a rational basis.
You figure it out.