Thank you for putting these for free on TH-cam and putting your information in terms even my blue collar ass can understand. I absolutely love paleontology and biology! I value every source I can find and few are as good as you.
I really appreciate the comment! I am a first gen student myself, who got into paleontology as an amateur collector, so it means a lot to hear I am connecting broadly. It's one of my goals to be able to talk to myself before I got the privilege of going to grad school. Thanks for the feedback. Made my day!
Man this is great! I never saw a paleontology lecture that was both so entertaining and informative at the same time. Thank you so much for sharing! Much love from Germany
Dear Jason - Just found your lecture it was completely brilliant and full of insight and enthusiasm. Especially exciting where the Cambrians invent harnessing minerals!
Thanks for a wonderful job, Jason. My wife thought it was the voice of the Khan Academy guy. I told her the Khan Academy guy is a smart gentleman, but I wouldn’t expect him to be that fluent in Paleontology. You are wonderful, clear, and one can tell that you breathe this stuff.
Hi Jason, I really appreciate your profound and actual knowledge. Your enthousiastic & energetic style of presenting makes these lextures awesome! Love to see them all! Thank you very much!
This was wonderful; thank you so much for sharing. Not only is this a valuable source of free information, but it's also a beautiful time capsule of the early pandemic days. I couldn't help but chuckle when you said "Just pull me aside- well I guess send me an email since you can't pull me aside anymore". It perfectly captures that period in March 2020 when we were all collectively coming to the realization that life was about to be very different.
Yup! Those were weird times. I get comments to the effect of "you should have done x or y...". Man, we were just trying to finish the semester in a way that held some value! Thanks for the compliment!
Hugely appreciated this lecture series as it ties together many key evolutionary concepts with plenty of real-world examples. Many lectures will talk about selective pressures but don't spend enough time on the interplay between a changing environment and life that depends on it and how it exploits those changes, and by doing so changing the micro and possibly macro environment in turn, while also creating new niches and opportunities for specialization for other life in multiple ecologies. You do a great job in revealing the elegance of biogeocoenosis in a very approachable way. If you are able or willing to record future lectures, I'd love to watch them.
Brilliant, I really enjoyed this and I can't wait to watch the rest of the series. Oh, that Ediacaran thing comes from Charnwood, England - not too far from where David Attonborough was born.
Absolutely fantastic lecture! Of course the topic is interesting on its own, but I think few would explain it so well! This sort of lectures in truly the best thing about TH-cam.
This was a fascinating lecture which gave me a lot of insights about what was going on before the "Cambrian explosion" and possibly why. The longer I watched it, the more I asked myself: If virtually all of that strange Ediacaran fauna became extinct until the end of the Ediacaran, where do all the "modern" animals (rsp. their classes) come from? Its hard to imagine that they evolved once again "from scratch" i. e. from monocellular eucaryotes. So their ancestors must have crawled around among the other Ediacaran critters. Is it that we just haven't found them yet, or are we still trying to puzzle together who is who, having only very vague ideas about their evolutionary relationship with later forms? Or maybe my way of thinking is just plain wrong. Maybe Ediacaran biota only became "extinct" the way dinosaurs died out, leaving birds as their contemporary offspring?
A great presentation with so much useful information. When you mentioned that there was a significant release of phosphate into the marine environment after one of the early glaciations, it reminded me that (I believe) all eucariotes metabolize ATP (Adenine Tri-Phosphate) to ADP (Adenine Di-Phosphate). Life as it existed probably couldn't get complex and large if there wasn't adequate Phosphate to metabolize.
What I would like to see perhaps in a future lecture, is a detailed view of the different proxies used to determine temperature, oxygen and co2 concentration and many other relevant parameters of past environments. Thanks for your very interesting lectures.
Thanks! Unfortunately these are just the final bit of the course from when we were forced online from COVID. I just decided to make the lectures public, but the 'rest of the series' after these few doesn't exist as the lectures were live. Maybe one day I'll record them anew!
Really breathtaking summation, especially the (implicit) prospect that the ediacran macrobiota may have played that initial role in pushing zooplankton’s ability to swim in the water column (thus creating the pressure for stem Arthropods to evolve their body plan in time for the Cambrian
Great video!!! I only chimed in to say that I've always had the same view in the cause of the Cambrian explosion. To me it always seemed that the radiation of species during the Cambrian is the same ordeal life goes through after a big mass extinction- new forms of life must evolve quickly to fill in the emptied niches. It's just that those niches were never occupied before. I think the oxidation and the high levels of calcium just enabled the radiation and then it was all caused by the prey-predator arms race, niche partitioning and other relations between species. Keep up the good work!
Hi from another professor. I'm a biologist with a background in plants and I just love this lecture series! I do a small segment on the history of life on earth in my general biology (mixed majors and nonmajors) class but this is far more detailed. I've been really fascinated by paleontology for a while, but I've never been able to take a class in it so this is a treat. Thank you. :) One of my missions when I get back to Toronto is to visit the ROM again. :)
Thanks! And feel free to repurpose any of it for your classes if it helps. I put it up at Creative Commons. If you weren't aware, the ROM just unveiled their new history of life exhibit in the couple of days. Exciting stuff!
I started listing and you made this so interesting that I was compelled to stop everything and listen. I felt like you made this almost conversational. Like you were tutoring me individually
Excellent lecture! My mind was not blown by the Tribrachidium with three fold symmetry, it was blown by the fact that a jelly fish can and has been fossilized, still hard to wrap my head around that.
I really enjoyed this lecture. Very glad you put it on youtube. At 43 minutes you mention that, if you’re at St. John’s your “this close” to Mistaken Point”. I hope they’ve rebuilt the roads in Newfoundland since I was there. Newfoundland roads are not what you find in Toronto. I got to the Burin Peninsula to the small Shelly and trace fossils site ok. When you get to Avalon near the abandoned village Drook, the road turns into a landslide. My car couldn’t make it without fear of breaking an axle. So close and yet so far.
Hey there. Its been a while since I drove out east but I concur with the road condition issues. Raised in Northern, Ontario and driving between the shield was also fun......And of course to moose (plural meese?). Alas in the GTA fossil hunting stinks.
We don't use a textbook for that class. It's mainly for arts students, so we also don't spend a lot of time on technical papers. Students are assigned reflections from Riley Black's (formerly Brian Switek) 'Written in Stone'. Four Billion Years and Counting is given as a suggested reading (it's a great overview of the geological history of Canada). There are a few other papers on things like phylogenetics assigned for reflection, but those two are the main ones. Neither directly relate to lecture content, but rather provide broader context/historical perspective.
@@jasonloxton2785 Thanks! Before watching I hadn't realized what a wealth of interesting fossil localities there are in your neighborhood. Need to start planning a visit to the area...
For really interested enthusiasts, the Oxford University Museum of Natural History had a major exhibit and a phenomenal lecture series in late 2020 to early 2021, now on TH-cam.
heard of some recent experiments in biology which attempted to induce multicellular life by subjecting some yeast specimens to selective breeding plus induced pressures. Massive breakthrough occured when yeast was subjected to low-oxygen environments, forcing them to form rudimentary circulation, more robust structures, and i think also castes.
This was a really fun lecture, thank you! (I troll youtube for television I can watch while knitting. It's kind of amazing how much educational stuff is out there.)
On the Cumberland Plateau, in Tennessee, I have found “worms” fossilized with soft tissue attached. It looks like a brown husk. I thought I was crazy, till now!
It’s not common to find someone talking about complex life before the Cambrian explosion, but it’s downright rare to find someone talking about pre-ediacaran multicellular life! I wish I could find the class you were talking about at 7:48
These were for an earth history class I teach at Cape Breton University. These were my actual lectures for the final few classes when we went online at the start of COVID, so the classes before were in-person and not recorded (unfortunately). I'm talking to my physical students, not the TH-cam audience, which I hadn't planned for (but am very much enjoying sharing with).
@@jasonloxton2785Well, I appreciate what you were able to put online! Admittedly I haven’t searched very hard, but so far this series is one of the most invaluable resources for my hyperfixation on the history of life on earth! I’d like to think that I got lucky and found one of the best videos on the subject early on.
Is there anything you can place up that would help explain how animals actually developed the ability to move? Like how did they go from sessile to being able to be mobile?
Thanks for the lectures. Went a different career path. When I was a kid I wanted to be a fossil hunter, an astronaut and a pirate. A few decades later.......I wanna be a pirate, a fossil hunter and an astronaut :) This gent is both informative to a semi-layman but is also interesting and engaging. Wish a few more of my undergrad/grad profs were even 1/10th as interesting.
Love your lecture series, TH-cam at its best! Any chance you are going to work your way back to the real exiting stuff, the 'boring billion' and before? Dinosaurs are cool and stuff but can't hold a candle to origin of life and the Rise of the Eukaryotes imo
If oxygenation started after the banded iron layers were formed, how did that iron in the banded iron layers oxidize ? ... also how representative are the deposits containing the Ediacaran fossils for the whole area of the surface of the earth ?
I always thought Dickinsonia resembled a huge, round flatworm, and shows some very early development of having an anterior and posterior end. its segments were asymetrical, but look to have still had a degree of motor function, allowing it to scoot across the seabed. If thats the case, it would likely have developed front and back ends simply to make better use of its mobility
@@jasonloxton2785 @Jason Loxton Thanks Jason I really enjoyed the 5 episodes, and watched all 5 back to back. I seriously want to visit Joggins which I did not know about. I happen to be very lucky because I have dual US/CA citizenship which makes the trip a real possibility.
The one good thing the future will remember about the COVID pandemic is this flood of excellent lectures from fantastic teachers. Thanks from Germany for sharing your insights. And keep on exposing the creationists nutters for what they are. I saw Darwin´s dilemma and indeed a waste of time.
Actually saw a talk on it before the paper came out. Was pretty convinced. Coolest part is that the structures in questions aren't rare. Even people in the audience were like "oh, I've seen that!" It's just no one realized what they might have been looking at.
Thanks for the lecture,,I truly enjoy your method of teaching although I'm not in your class, just getting my Greek on.pleas show your face, it's more personable.i would like to thank you for your time and helping the next generation.
Thanks. Appreciate it. I made these for a class in the beginning of the pandemic. I actually surveyed them to ask whether they wanted my head in the video, and they said no! Maybe will reconsider in the future. :)
Great video. The “cam” in “Cambrian” is pronounced “cam”, not “came”, BTW. It is derived from the Roman name for Wales, and has nothing to do with Cambridge (if that’s the reason for the mispronunciation).
No, Cambria is derived from the Latinised name of Cymru (the Welsh word for Wales). This is distinct from specifically Roman, as Cambria was not in use during the Roman period (Wales hadn't been defined yet).
12:41 Ah, so that’s why Tonian Park wasn’t as successful as the Jurassic one… if only they’d borrowed the strategy of using animals from time periods they weren’t named after 😔
I'm told every living cell has DNA. DNA is made from 4 base nucleotides Nucleotides are made of organic protiens and organic acids. If this is so, can you explain how organic protiens and organic acids are made from inorganic sources?
The short answer is we don't know for sure. Nucleobases are synthesized abiotically in a ton of environments. How you polymerize them to produce RNA/DNA in conditions of the early earth remains an ongoing question. Here's a review that you might find useful: pubs.acs.org/doi/10.1021/acs.chemrev.9b00546
I saw a video on a researcher who was firing little slugs of granite at buckets of damp volcanic ash, at 3000m/s to approximate meteorite impacts, and getting a range of organic chemicals just from that.
@@jasonloxton2785 As Far As I Have Heard, It Isn't Even Known For Sure Whether Or Not Life Actually Began Here, Or Even What Those Early Conditions Were.
These are the last few lectures from a class impacted by the 2020 COVID transition online. They are my actual class lectures, but I made them available for public interest. The other lectures referred to were in person and not recorded.
My PhD in paleontology? :) Seriously though, I love rangeomorphs. They are "failed" in the sense that their whole body plan was relatively short-lived. They were a brief evolutionary experiment thats never been repeated. They *were* very successful within the Ediacaran, however.
How can cholesterols and steroids last 500-600 million years??? Wouldn’t they break down by then? How could they be sure the sample wasn’t contaminated?
Jason Loxton's "Rise of the Animals" was very informative. Not as entertaining as Arnold Schwarzenegger's "Terminator - Rise of the Machines." If you're looking for action and entertainment - Rise of the Machines. Want to learn how the world we live in came about? - Rise of the Animals.
Videos were made for a class that rapidly transitioned online at beginning of pandemic, so comments were asking students how best to meet their needs as they were recorded week to week.
Well, as noted in the intro these were my actual class lectures, and therefore follow an actual class lecture timeline/format. That said, I was actually kind of shocked that they worked as TH-cam videos. The common wisdom, as you note, is that people won't watch long format things. I've always believed that too. However, the data on these is shockingly contractictory to that idea. This video has 31 k views. Of those, 52% only make it 30 seconds. By 10 min, I've lost another 10%. But, over the next 1.4 hours, I only lose another 10%. Put another way: 2/3rds of those who make it 5 min in stay for the whole 1.5 hours. I was genuinely shocked to see this. There's clearly a demand for long format.
@@jasonloxton2785 Your math is off. If 52% only make it 30 seconds, then there is no way that 66% stay after five minutes. My point was simply to make them available in shorter segments, if possible. You may or may not capture some of the 52%, but to me 30 seconds is not enough time to properly evaluate ANYTHING. I like your presentation style. There are those who want to understand a particular part but already know or are not interested in the other parts. Only being able to access them like a tape recorder of old instead of "jumping" to them does not work in this day and age. Thanks.
@Tom Clayton My math is fine. 2/3rds *of the proportion* that make it five minutes stay for the rest of the video. (In other videos, 80% of those who make it 2 minutes stay for an hour.) Regardless, these videos are what they are: my actual classes... & free things that I took the time to give to the world. If you'd prefer shorter videos, there are many out there. Heck, I even made these Creative Commons licensed: you're welcome to do the editing and repost them yourself in whatever format you prefer.
Another gigachad prof posting full lectures on youtube. Thanks!
Free palaeontology lectures?
Even if I don't work or formally educated in palaeontology, having some glimpse of the lectures feels nice.
Thank you.
Thank you for putting these for free on TH-cam and putting your information in terms even my blue collar ass can understand. I absolutely love paleontology and biology! I value every source I can find and few are as good as you.
I really appreciate the comment! I am a first gen student myself, who got into paleontology as an amateur collector, so it means a lot to hear I am connecting broadly. It's one of my goals to be able to talk to myself before I got the privilege of going to grad school. Thanks for the feedback. Made my day!
Thank You, James.You proved to me I can still learn something profound at 70! Seriously!
Sorry Jason. Should have worn my glasses. LOL
I love the description that 'the cambrian explosion had a long fuse in the ediacaran'.
Man this is great! I never saw a paleontology lecture that was both so entertaining and informative at the same time. Thank you so much for sharing!
Much love from Germany
Thanks. Much appreciated. They weren't designed for TH-cam, just my COVID classes. I am really happy other people are enjoying them.
Dear Jason - Just found your lecture it was completely brilliant and full of insight and enthusiasm. Especially exciting where the Cambrians invent harnessing minerals!
Thanks for a wonderful job, Jason. My wife thought it was the voice of the Khan Academy guy. I told her the Khan Academy guy is a smart gentleman, but I wouldn’t expect him to be that fluent in Paleontology. You are wonderful, clear, and one can tell that you breathe this stuff.
Hi Jason, I really appreciate your profound and actual knowledge. Your enthousiastic & energetic style of presenting makes these lextures awesome! Love to see them all! Thank you very much!
Appreciated! There are five of them. Unfortunately not the whole class, as the restore presented live.
Thanks so much for putting up this series of lectures for free.
Glad you enjoyed them!
Looks like I just found my next series to binge on! Some great new insights (for me) on a fascinating topic.
I really appreciated your lectures during COVID lock down.
Jason you have such a great lecture voice! I love these, thank you, please please please make more just like this. This is perfect!
Very good video Interesting, informative, and entertaining. Thanks for posting it.
This was wonderful; thank you so much for sharing. Not only is this a valuable source of free information, but it's also a beautiful time capsule of the early pandemic days. I couldn't help but chuckle when you said "Just pull me aside- well I guess send me an email since you can't pull me aside anymore". It perfectly captures that period in March 2020 when we were all collectively coming to the realization that life was about to be very different.
Yup! Those were weird times. I get comments to the effect of "you should have done x or y...". Man, we were just trying to finish the semester in a way that held some value! Thanks for the compliment!
excellent presentation!! and no commonplace stammering or meandering....fascinating!!
Engaging and informative, even for the casual observer. Kudos!
Hugely appreciated this lecture series as it ties together many key evolutionary concepts with plenty of real-world examples.
Many lectures will talk about selective pressures but don't spend enough time on the interplay between a changing environment and life that depends on it and how it exploits those changes, and by doing so changing the micro and possibly macro environment in turn, while also creating new niches and opportunities for specialization for other life in multiple ecologies.
You do a great job in revealing the elegance of biogeocoenosis in a very approachable way. If you are able or willing to record future lectures, I'd love to watch them.
this is an excellent presentation, thanks for the lecture!
Brilliant, I really enjoyed this and I can't wait to watch the rest of the series. Oh, that Ediacaran thing comes from Charnwood, England - not too far from where David Attonborough was born.
I was really confused, until I realized you're Canadian. Then it all made a lot more sense. Hello from Russia 🇷🇺
Our of curiosity, why were you confused? By all the Canadian references?
Absolutely fantastic lecture! Of course the topic is interesting on its own, but I think few would explain it so well! This sort of lectures in truly the best thing about TH-cam.
This was a fascinating lecture which gave me a lot of insights about what was going on before the "Cambrian explosion" and possibly why. The longer I watched it, the more I asked myself: If virtually all of that strange Ediacaran fauna became extinct until the end of the Ediacaran, where do all the "modern" animals (rsp. their classes) come from? Its hard to imagine that they evolved once again "from scratch" i. e. from monocellular eucaryotes. So their ancestors must have crawled around among the other Ediacaran critters. Is it that we just haven't found them yet, or are we still trying to puzzle together who is who, having only very vague ideas about their evolutionary relationship with later forms? Or maybe my way of thinking is just plain wrong. Maybe Ediacaran biota only became "extinct" the way dinosaurs died out, leaving birds as their contemporary offspring?
Brilliant presentation! Really makes me wish I had gotten to Mistaken Point when I was in Newfoundland years ago.
Very nice lectures. Thanks!
Thank you very much for giving us the incredible opportunity to enjoy such awesome content 🙏
A great presentation with so much useful information. When you mentioned that there was a significant release of phosphate into the marine environment after one of the early glaciations, it reminded me that (I believe) all eucariotes metabolize ATP (Adenine Tri-Phosphate) to ADP (Adenine Di-Phosphate). Life as it existed probably couldn't get complex and large if there wasn't adequate Phosphate to metabolize.
What I would like to see perhaps in a future lecture, is a detailed view of the different proxies used to determine temperature, oxygen and co2 concentration and many other relevant parameters of past environments. Thanks for your very interesting lectures.
engaging presenter, interesting lecture thank you
This is a great lecture for beginners or advanced.
Fantastic series of lectures, great presenter .Will you be adding all of the proceeding and subsequent lectures please?
Thanks! Unfortunately these are just the final bit of the course from when we were forced online from COVID. I just decided to make the lectures public, but the 'rest of the series' after these few doesn't exist as the lectures were live. Maybe one day I'll record them anew!
I put the five that are up in a playlist. :) th-cam.com/play/PLP-J1zstxIrW-uee_UktkFx-bKbcXMfwq.html
Really breathtaking summation, especially the (implicit) prospect that the ediacran macrobiota may have played that initial role in pushing zooplankton’s ability to swim in the water column (thus creating the pressure for stem Arthropods to evolve their body plan in time for the Cambrian
So cool that I’ve decided to Jeep B.C. this fall, with daughter, and stop by the Burgess Shale formation. We did Olduvai a few years back.
Great video!!! I only chimed in to say that I've always had the same view in the cause of the Cambrian explosion. To me it always seemed that the radiation of species during the Cambrian is the same ordeal life goes through after a big mass extinction- new forms of life must evolve quickly to fill in the emptied niches. It's just that those niches were never occupied before. I think the oxidation and the high levels of calcium just enabled the radiation and then it was all caused by the prey-predator arms race, niche partitioning and other relations between species. Keep up the good work!
Fantastic.
You sir, are fantastic!!
Hi from another professor. I'm a biologist with a background in plants and I just love this lecture series! I do a small segment on the history of life on earth in my general biology (mixed majors and nonmajors) class but this is far more detailed. I've been really fascinated by paleontology for a while, but I've never been able to take a class in it so this is a treat. Thank you. :) One of my missions when I get back to Toronto is to visit the ROM again. :)
Thanks! And feel free to repurpose any of it for your classes if it helps. I put it up at Creative Commons. If you weren't aware, the ROM just unveiled their new history of life exhibit in the couple of days. Exciting stuff!
I started listing and you made this so interesting that I was compelled to stop everything and listen. I felt like you made this almost conversational. Like you were tutoring me individually
Thanks! Really appreciate the feedback!
Excellent lecture!
My mind was not blown by the Tribrachidium with three fold symmetry, it was blown by the fact that a jelly fish can and has been fossilized, still hard to wrap my head around that.
I really enjoyed this lecture. Very glad you put it on youtube. At 43 minutes you mention that, if you’re at St. John’s your “this close” to Mistaken Point”. I hope they’ve rebuilt the roads in Newfoundland since I was there. Newfoundland roads are not what you find in Toronto. I got to the Burin Peninsula to the small Shelly and trace fossils site ok. When you get to Avalon near the abandoned village Drook, the road turns into a landslide. My car couldn’t make it without fear of breaking an axle. So close and yet so far.
Hey there. Its been a while since I drove out east but I concur with the road condition issues. Raised in Northern, Ontario and driving between the shield was also fun......And of course to moose (plural meese?). Alas in the GTA fossil hunting stinks.
Awesome.
Thanks a lot
These were great! Thanks for sharing them. Would it be possible to see the reading list for the class?
We don't use a textbook for that class. It's mainly for arts students, so we also don't spend a lot of time on technical papers. Students are assigned reflections from Riley Black's (formerly Brian Switek) 'Written in Stone'. Four Billion Years and Counting is given as a suggested reading (it's a great overview of the geological history of Canada). There are a few other papers on things like phylogenetics assigned for reflection, but those two are the main ones. Neither directly relate to lecture content, but rather provide broader context/historical perspective.
@@jasonloxton2785 Thanks! Before watching I hadn't realized what a wealth of interesting fossil localities there are in your neighborhood. Need to start planning a visit to the area...
Most interesting.
This is a great lecture. Like I am not a student any more but vey much enjoyed this. Thank you
That is not a bug btw.... :)
For really interested enthusiasts, the Oxford University Museum of Natural History had a major exhibit and a phenomenal lecture series in late 2020 to early 2021, now on TH-cam.
Thank you it was very good 💯
heard of some recent experiments in biology which attempted to induce multicellular life by subjecting some yeast specimens to selective breeding plus induced pressures.
Massive breakthrough occured when yeast was subjected to low-oxygen environments, forcing them to form rudimentary circulation, more robust structures, and i think also castes.
This was a really fun lecture, thank you! (I troll youtube for television I can watch while knitting. It's kind of amazing how much educational stuff is out there.)
Honestly blows my mind too!
On the Cumberland Plateau, in Tennessee, I have found “worms” fossilized with soft tissue attached. It looks like a brown husk. I thought I was crazy, till now!
It’s not common to find someone talking about complex life before the Cambrian explosion, but it’s downright rare to find someone talking about pre-ediacaran multicellular life!
I wish I could find the class you were talking about at 7:48
These were for an earth history class I teach at Cape Breton University. These were my actual lectures for the final few classes when we went online at the start of COVID, so the classes before were in-person and not recorded (unfortunately). I'm talking to my physical students, not the TH-cam audience, which I hadn't planned for (but am very much enjoying sharing with).
@@jasonloxton2785Well, I appreciate what you were able to put online! Admittedly I haven’t searched very hard, but so far this series is one of the most invaluable resources for my hyperfixation on the history of life on earth! I’d like to think that I got lucky and found one of the best videos on the subject early on.
Please put out a Video on the Boring Biljon.
Is there anything you can place up that would help explain how animals actually developed the ability to move? Like how did they go from sessile to being able to be mobile?
Thanks for the lectures. Went a different career path. When I was a kid I wanted to be a fossil hunter, an astronaut and a pirate. A few decades later.......I wanna be a pirate, a fossil hunter and an astronaut :) This gent is both informative to a semi-layman but is also interesting and engaging. Wish a few more of my undergrad/grad profs were even 1/10th as interesting.
pirate fossil hunter.
now that is a career worthy of pursuing.
you sail a ship and plunder paleontologists who transfer their fossils by sea
@@spatrk6634
and if you have the powerful rockets you can make a clean getaway :) Cheers and have a great one
I know it's 4 years later, but I hope you've cleaned your house lol
Great show
Thanks for no annoying background muzak ..........
Love your lecture series, TH-cam at its best! Any chance you are going to work your way back to the real exiting stuff, the 'boring billion' and before? Dinosaurs are cool and stuff but can't hold a candle to origin of life and the Rise of the Eukaryotes imo
If oxygenation started after the banded iron layers were formed, how did that iron in the banded iron layers oxidize ? ... also how representative are the deposits containing the Ediacaran fossils for the whole area of the surface of the earth ?
I always thought Dickinsonia resembled a huge, round flatworm, and shows some very early development of having an anterior and posterior end. its segments were asymetrical, but look to have still had a degree of motor function, allowing it to scoot across the seabed. If thats the case, it would likely have developed front and back ends simply to make better use of its mobility
Wow that's quite fascinating Mr Volcano!
what course are you teaching and what type of student(high school, CC, UC) is this lecture course intended for? Thanks!
First year university. Non-science majors.
@@jasonloxton2785 @Jason Loxton Thanks Jason I really enjoyed the 5 episodes, and watched all 5 back to back. I seriously want to visit Joggins which I did not know about. I happen to be very lucky because I have dual US/CA citizenship which makes the trip a real possibility.
The one good thing the future will remember about the COVID pandemic is this flood of excellent lectures from fantastic teachers. Thanks from Germany for sharing your insights. And keep on exposing the creationists nutters for what they are. I saw Darwin´s dilemma and indeed a waste of time.
100th comment. Now I need to say something amazing. "SOMETHING AMAZING"
You must love the new alleged 900 million year old sponge fossil :)
Actually saw a talk on it before the paper came out. Was pretty convinced. Coolest part is that the structures in questions aren't rare. Even people in the audience were like "oh, I've seen that!" It's just no one realized what they might have been looking at.
@@jasonloxton2785 Cool :)
1950s sci-fi movie "The Predatory Worm" would have been great 👍
I am curious how old is cancer in the fossil record?
At least 240 million years.
Thanks for the lecture,,I truly enjoy your method of teaching although I'm not in your class, just getting my Greek on.pleas show your face, it's more personable.i would like to thank you for your time and helping the next generation.
Thanks. Appreciate it. I made these for a class in the beginning of the pandemic. I actually surveyed them to ask whether they wanted my head in the video, and they said no! Maybe will reconsider in the future. :)
Great video.
The “cam” in “Cambrian” is pronounced “cam”, not “came”, BTW. It is derived from the Roman name for Wales, and has nothing to do with Cambridge (if that’s the reason for the mispronunciation).
No, Cambria is derived from the Latinised name of Cymru (the Welsh word for Wales). This is distinct from specifically Roman, as Cambria was not in use during the Roman period (Wales hadn't been defined yet).
6:35
12:41 Ah, so that’s why Tonian Park wasn’t as successful as the Jurassic one… if only they’d borrowed the strategy of using animals from time periods they weren’t named after 😔
I'm told every living cell has DNA.
DNA is made from 4 base nucleotides
Nucleotides are made of organic protiens and organic acids.
If this is so, can you explain how organic protiens and organic acids are made from inorganic sources?
The short answer is we don't know for sure. Nucleobases are synthesized abiotically in a ton of environments. How you polymerize them to produce RNA/DNA in conditions of the early earth remains an ongoing question. Here's a review that you might find useful: pubs.acs.org/doi/10.1021/acs.chemrev.9b00546
I saw a video on a researcher who was firing little slugs of granite at buckets of damp volcanic ash, at 3000m/s to approximate meteorite impacts, and getting a range of organic chemicals just from that.
@@jasonloxton2785 As Far As I Have Heard, It Isn't Even Known For Sure Whether Or Not Life Actually Began Here, Or Even What Those Early Conditions Were.
First And Foremost, One Must Identify And Comprehend What DNA Actually Is.
You're talking about the "last class" when this is called lecture 1?
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These are the last few lectures from a class impacted by the 2020 COVID transition online. They are my actual class lectures, but I made them available for public interest. The other lectures referred to were in person and not recorded.
@@jasonloxton2785
Oh, I see! Well, it's a very good lecture.
I will watch the others. It's a shame you didn't record the earlier ones!
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I'm here for the evolution of sex.
What makes you qualified to abhor Rangeomorphs as "failed".
My PhD in paleontology? :) Seriously though, I love rangeomorphs. They are "failed" in the sense that their whole body plan was relatively short-lived. They were a brief evolutionary experiment thats never been repeated. They *were* very successful within the Ediacaran, however.
Well. I guess it makes me feel better that humans aren't alone in altering our world. Seems that's just a byproduct of life itself. 🤷🏻
How can cholesterols and steroids last 500-600 million years??? Wouldn’t they break down by then? How could they be sure the sample wasn’t contaminated?
Great lecture, just baffled on that point.
Jason Loxton's "Rise of the Animals" was very informative. Not as entertaining as Arnold Schwarzenegger's "Terminator - Rise of the Machines."
If you're looking for action and entertainment - Rise of the Machines.
Want to learn how the world we live in came about? - Rise of the Animals.
Ha ha! In fairness, I had a lower budget to work with. :)
Do you really think you have to urge people to give their opinions about how to improve your videos?
Videos were made for a class that rapidly transitioned online at beginning of pandemic, so comments were asking students how best to meet their needs as they were recorded week to week.
@@jasonloxton2785 I was mostly joking. You did a great job.
You need to split it up into shorter videos. Nobody’s gonna watch a one hour and 30 minute video. This is basic!
Well, as noted in the intro these were my actual class lectures, and therefore follow an actual class lecture timeline/format. That said, I was actually kind of shocked that they worked as TH-cam videos. The common wisdom, as you note, is that people won't watch long format things. I've always believed that too. However, the data on these is shockingly contractictory to that idea.
This video has 31 k views. Of those, 52% only make it 30 seconds. By 10 min, I've lost another 10%. But, over the next 1.4 hours, I only lose another 10%. Put another way: 2/3rds of those who make it 5 min in stay for the whole 1.5 hours.
I was genuinely shocked to see this. There's clearly a demand for long format.
@@jasonloxton2785 Your math is off. If 52% only make it 30 seconds, then there is no way that 66% stay after five minutes. My point was simply to make them available in shorter segments, if possible. You may or may not capture some of the 52%, but to me 30 seconds is not enough time to properly evaluate ANYTHING. I like your presentation style. There are those who want to understand a particular part but already know or are not interested in the other parts. Only being able to access them like a tape recorder of old instead of "jumping" to them does not work in this day and age. Thanks.
@Tom Clayton My math is fine. 2/3rds *of the proportion* that make it five minutes stay for the rest of the video. (In other videos, 80% of those who make it 2 minutes stay for an hour.) Regardless, these videos are what they are: my actual classes... & free things that I took the time to give to the world. If you'd prefer shorter videos, there are many out there. Heck, I even made these Creative Commons licensed: you're welcome to do the editing and repost them yourself in whatever format you prefer.