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Going to strongly disagree with his claims about the diet. The large majority of pre-agricultural societies ate almost entirely fat and meat based diets. They only ate plant material as survival food when they could not secure a kill. It is only a very few isolated ancient societies that ate a diet of majority plant material, and those isolated peoples show all manner of diet related diseases and abnormalities. Stunted growth, poorly formed bones, tooth decay and teeth ground down, overall shorter height, higher rates of cancers and heart disease, etc. Dr. Michael Eades has several very good lectures about this.

Darling be careful with snakes

I am amazed at how similar these humans were in figuring out how to make a point as a weapon using flint from europe to the americas, how similar the spears, arrows and atlatls were yet no solid evidence of travels among the continents. But mostly I am astounded with the evidence in China, asia, americas, europe, and africa of enormous walls of stones fitting against each other with no mortar and no gaps. How did they do that? Best answer so far for me is copper drills with imbedded carborundum or diamond crystals.

Well done and informative!

Dr. Earyn McGee was one of my favourites to follow when I was on Twitter. It’s nice to find her here!

Wonderful talk! Thanks so much from New Mexico.

The last pole shift and magnetic reversal was the reason for the mass extinction. That and a meteor impact contributed.

Research "The Carolina Bays" for more evidence of impact the hypothesis.

I always believed in beringia butbi also believe they came from polynesia as well

This is what I envisioned UTube was created for education 😁 Science isn't complicated as the negro slave from Texas educated himself shows that no race or ethnicity was better than another and the bravery of the indigenous during the last ice age with cooperation for survival with TRUST of what each person that the community depended upon for survival thus any human that lied was removed from the group and died thus humans have developed to cooperate not fighting before domestication of plants and animals. When that occurred the strong violent males took from others with propaganda of fear that every human should be taught and were by their tribe show no fear as the scent is obvious to a predator.

2024 Cicadapocalypse anyone???

32:13 😂good luck with that.

Omg, REALLY??!! Stick with the archeology.. leave the Marxist leaning statements about the man under the bridge being there because of the unfair distribution of wealth 60's fantasy in the past where it belongs. That man is under the bridge because he chooses to be, period. There are those among us who intentionally hurt others and take others stuff without permission. That Utopian world that you seem to present for 'hunter gatherer' societies is pure fantasy. You know why it's fantasy? Because even they dealt with deviants, harshly and quickly, those elements were culled from their societies with extreme prejudice, sometimes brutally. You want to save kittens? Go save kittens. Bad men are not kittens, and never will be and will continue to prey on their neighbors unless dealt with... THAT is unfortunately human nature and no amount of flowers or 'free love' will change that.

Watch the video IS GENESIS HISTORY

Are you at NAU?

Dr Ryan is a fabulous presenter! I have never heard a lecturer do as great of a job at explaining ice-age finds, why they are significant, and how that relates to the environment and early humans.

Loved it!

Delightful and open-minded presentation! Dick Ryan is fully-informed and skilled at showing comparative photos and illustrations. These are exciting times for North American archaeology. Many thanks!

Hmm, cooler, moister environment, what’s not to like? Let’s go back to the Ice Age!

Thank you SO MUCH for your comments towards the very end on the ills of capitalism. People need to realize how "antiquated" that socioeconomic arrangement is now. A better world is possible, and we Humans proved it tens of thousands of years ago (our ancestors' lifestyles and practices and BELIEFS updated to modern standards, of course)

Outstanding presentation, thank you!

From what I understand, due to much of Great Basin being full of water, most of the intermontane West/SW surrounding it was far more wooded and vegetated than it is today, making the entire region perfect for the First Peoples of the Americas to thrive in, before expanding south and east as the climate changed at the end of the last glacial.

The lecture was great. Thank you so much

"The misconception arises from a fact." i like that

I often dream of what it would be like to have lived back then here in AZ. If I find a time machine I’m definitely going back 18,000 years ago and see if I can get in on a mammoth hunt.

Such a great presentation.

Excellent!

Great video, these are one of my favorite butterflies

For the past couple years, as I've paid more attention to the progress of seasonal activity of living things, I've noticed that some of the first insects I see becoming active in the spring are members of the order diptera, the flies. They seem to be some of the first ones to start thriving and show up in surprising diversity from the first bit of warmth. I'll suddenly start noticing anything from flower flies, to tachinids, to muscoids, craneflies and other nematocerans like fungus gnats, midges, mosquitos, and gall midges, as well as various leaf miners and a wealth of others. This is just in my own observation in flats of coastal southern California.

I agree with everyone - this is a VERY good lecture. Now, this, though: Paul S. Martin and Overkill... Humans arrived in N America at least 10,000 years before the extinctions. Extinctions happened in 4 major regions on Earth. Did humans arriving in America kill off the animals in all those 4 regions? Of course not. We have tallied up the extinctions in the Younger Dryas period, and what we have compiled for the 4 worst regions of the world is this list: ---(205) or 70% of all animals over 44kg, ---(103) or 82% of all animals over 150kg, ---(53) or 89% of all animals over 400kg, ---(26) or 100% of all animals over 1000kg Mass Extinction Geographical Regions. -Palearctic -Nearctic -Neotropic -Australasia -Afrotropic - safer -Indomalaya - safer The numbers above are for the Palearctic, the Nearctic, the Neotropic, and the Australasia regions. We found those 4 regions to be ones that got hit hardest. We also have numbers for the other two regions of the world, the Afrotropic and the Indomalaya regions, whose species survived much better. They are, for example, where elephants survived - India and Africa. And overall in our scenario, those two regions were much safer areas. Our scenario predicts this to be the case. Conclusion: With 70% of all animals over 44 kgs we have to begin to consider the Younger Dryas Extinction Event (Late Pleistocene Extinction Event) to be the 6th Mass Extinction Event Earth has suffered. And it didn't happen because a few hundred or thousand humans entered America 10,000 years before that. Paul S. Martin was wrong.

Doc, I am watching this, and smiling. I am working on a paper/book about the end of the Pleistocene and about the mammoths. Thanks for the info on the climate in AZ then. It fits wonderfully with my hypothesis of what happened between then and now. I have >100 lines of evidence. Yours adds to that. I saw a Columbian mammoth reconstructed in a museum in Mexico. Holy crap was that TALL! I have ridden elephants. No comparison. I am very familiar w/ the Clovis story. Clovis First was bad science, led by the Smithsonian. Shame on them. Clovis was not a culture; it was a technology, passed around. More in the eastern US area. Gorgeous points. Right now focused on the Great Lakes area. Also Europe. The climate was like AZ in Oslo, Ireland, Baltic. Miami, Brownsville. Are you aware of the 200+ mammoths at the new Mexico City airport? Times Square for Columbian mammoths. Yeah, AZ mammoths and people had a rough time when things changed. That was at the Younger Dryas. But great climate before that. Believe me, there was no ice age then. Something else.

Thank you, great video

In the monsoon season a lookout could serve to warn of possible flash floods. In the modern context hilltop lookouts on National Forest are for fire warning

Thank you for hosting me! What a lovely group of people. ❤ I had a wonderful time.

Great video i love it. do you happen to know if this guys can swim?

So glad to find this, it has helped my curiosity about what New Mexico (where I’m from) would have looked like. New Mexico has somewhat higher mountains and higher deserts than Arizona but is similar otherwise.

If you take bees out… this does sound good lmao.

Very interesting and well presented! Got me wondering though, if we will ever find a way to significantly impact their growth rate.

Thoroughly enjoyed this presentation - only wish we could have been there in person. Fascinating topic for our AZ audience and wonderful presenter with a sweet sense of humor. Thank you!

It's difficult to watch this otherwise great video because the sound quality is so incredibly terrible

I wish this was a book I'd buy it great video

Such a shame about the audio!

Bob, I see Mourning Cloak butterflies in urban Prescott, AZ off & on all winter on warm days. They often feed on dried apples still clinging to tops of my 100 yr. old apple tree or it's tree sap. I have read their life span is 9 months, so I never allow grandchildren to capture them.

Woodland muskox, 38:35. Super cool!

Really enjoyed watching this. Very informative!

Is that circle wavy symbol of what? Thank You in advance 🤚

Thank you!

Thanks, Carly!

I watch a lot of pinyon videos and this is one of the best

So thoughtful ! Thanks.