California Mountain Lions, Episode 2: Research Techniques



“To research mountain lions, scientists must capture wild lions and collect vital data which can determine potential threats and how we can help conserve them.”

California Mountain Lions is an 8-episode mini-series illustrating the nature of mountain lions in California. Here, we hope to educate viewers on the importance of mountain lions to the ecosystem and what we can do to prevent their decline in our state.

To find more episodes and information on California Mountain Lions, visit

19 comments

  1. A friend watched a cougar chase down a doe and fawn. First he killed the doe and then he ran to where the fawn had stopped and killed it. The lion then ate a few bites and left. They are just cold blooded killers who kill for sport as well as food. An adult lion will kill as many deer as it gets the chance whether hungry or not. I have spent 60+ years in the mountains and have found several lion kills with hardly anything eaten. I think my 60 years should equal you City boys 4 years of college studying wildlife. They no longer fear you Californians and are figuring out that your easier to catch than a deer.

  2. I encountered a Mountain Lion youth tonight around 11:40pm while walking on the edge of UCSC. Lately there’s been an influx of coyotes all over the country, and several years ago I saw a bob cat about a mile from this location in a Feild in the morning.
    This one concerned me only because of its size I could tell it wasn’t nearly full sized even though it’s color and facial markings were present. However, it’s mother wasn’t anywhere around. I know this cause I saw it. Then realized it’s mother might be close so i made a bunch of noise and it disappeared only for me to see it again bout 15 minutes later. While sitting it’s head would have came up just past my knee, and I’m 5’10 ., with the huge Fires 🔥 we just recently experienced I’m concerned it may have gotten separated from its patents too early. I’ve recently read about another mountain lion youth that got separated from its mother in the fire and suffered minor burns before it was found and rescued. Knowing they’re territorial and a friend said they’ve recently seen that same one near that location.. I’m sure it’ll be there again as it was the first open meadow from a valley close by w/ a running Brooke that trickles 365, hopefully w/ the aboundant Feild mice, rabbits and wild turkey it’ll survive. I think it’ll take a cayote but not if there are several of them.. though I guess the coyotes give themselves up miles in advance w/ their constant chirps the use to communicate.
    I’m sure this isn’t the last time I’ll encounter this cub, and fortunately I carry a few extemely bright lights w/ me so it’ll always see me in advance,, ever thought it was it’s piercing bright eyes reflecting off my lights is how I first realized it was something, oddly enough it sorta froze and stared at me after it first retreated to a log which it sat on, as i started making lots of noise and looked for anymore glowing eyes 👀 hoping i wasn’t about to get pounced on by it’s mother.. next tine I’ll be armed w/ my camera that shoots 2k in night vision, abs maybe a live chicken for bait Incase it decides it wants to eat me… jk..

  3. 29 March 2020 – Wonderful series – THANK YOU! They are the largest cat that can purr.

  4. I've seen California Mountain Lions about 4 times. Best one is when I was in my bass boat idling out of a cove and 3 of them were swimming across. At first I thought what the hell is that, but that big fat long tail was floating on the water as they worked across. They reached the bank shook off looked around and took 3-leaps and disappeared into the tree line. It was cool.

  5. so our California Department of Fish and Wildlife isn't doing a good job. they say they're not at risk.

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