Major Transitions In Evolution

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❮PDF / Epub❯ ★ Major Transitions In Evolution  Author NOT A BOOK –
  • DVD and Guidebook
  • 13 pages
  • Major Transitions In Evolution
  • English
  • 14 December 2018
  • 9781598036824

10 thoughts on “Major Transitions In Evolution

  1. says:

    I ve read several books about evolution recently this lecture was a great addition Anthony Martin is a paleontologist and geologist He did the bulk of it first 17 of 23 he s a great speaker John Hawks, a biological anthropologist, did the next 6 about the rise of hominids The final one was a discussion between the two Martin discusses major transitions in deep time The earth is about 4.6 billion years old our first evidence of prokaryotes appear at about 4.1 billion during the Hadean Eon About 3.5 billion years ago, the Archean Eon kicks off with the mass extinction event caused by photosynthetic cells polluting the atmosphere with oxygen Weird way to think about it, isn t it I could go on, but Wikipedia timeline of the evolutionary history of life does a far better job showing it Martin did a great job explaining it.The biggest takeaway from this lecture is the rate of change of evolution Overall, it has sped up immensely This is shown over over again as the mass extinction events suddenly pushed rapid change It accelerates as ecosystems grow crowded causing competition for resources Organisms also have complex systems that sometimes allow them to change in seemingly minor ways that turn out to be great survival mechanisms.Another major point is just how much our science has progressed what this has meant for our understanding of evolution The Theory of Evolution is solid, but it is comprised of many hypothesis based on the terribly incomplete fossil record many facts that are often disconnected sometimes also incomplete Advances in science have been a tremendous help in joining these together in a cohesive story.The use of genetics statistical analysis of molecular changes is really helpful, interesting, often wrong, especially across the great extinction events when organisms changed rapidly or died off Normal patterns of change are upset when times get tough Both did a great job showing just how the ecosystem pushed many of the developments we see why I was especially impressed by the use of trace fossils They re not just looking at bones artifacts, but are able to look inside the bones with micro CT scans They can even find trace evidence of fats on stone tools figure out what bugs ate in some cases.Overall, this would have been a 5 star lecture if I had sat down with the study guide, but that s not how I listen to lectures There were a lot of slides pictures that I couldn t see when I needed to Both lecturers pretty much baffled me with long, odd ball names at various points did some backing filling This point is probably on me I m fairly ignorant about evolution have a lot of trouble with all the unfamiliar names That they still got their points across might make this a wash.Unfortunately, Hawks first couple of lectures in this course seemed like the first couple of lectures he d ever given full of pregnant pauses The last few were far better, but he still wasn t the speaker Martin was that s a shame He s not bad, but not nearly as good in comparison.Usually I try to give a list of the lectures an accounting of each, but I ve been busy didn t in this case Bad, Jim which is a shame because I should have been taking some good notes On the bright side, I don t think I ll have any problem listening to this again Anyone who has read my reviews knows that I detest repetition, yet there is so much in this lecture series that I could easily start over again enjoy it just as much Unfortunately, too many other books are calling right now So call this one a 4.5 I highly recommend it.

  2. says:

    Evolution is often scoffed at because of the lack of evidence for macro evolution This lecture analyzes many of the quite recent discoveries in these questionable phases of evolution from one species to another The professors are a bit dry, but the content is great They show evidence for biological evolution from single cell to multi cell, from fish to land, from eggs to live birth, from land back to sea, from great apes hominids to humans hominins They are clear to point out where evidence is lacking, and don t seem to ever try and stretch the truth I found it insightful and objective.

  3. says:

    DVD versionThis was my second time through these lecturesthe first being a little over four years ago Since then I have spent time with Drs Sutherland, Hazen, Wysession and others who have dealt with the natural world, trying to answer the age old question s of how and why we are where and how we are that makes sense, trust me No one set of lectures can address these questions, but taken together they can shed light on not only these questions, but the manner in which we should try to understand, not only the answers, but the questions themselves you can never get to the right answer, if you don t ask the right question.What I mean here is that, for those trying to decide whether or not to fork out a chunk of change for this lecture set, or a lecture set on the Ancient History of Egypt also an excellent lectures series , you should know that, like most natural, and earth, history courses one is never enough Any topic dealing with earth s history and the natural progression of the inhabitants therein, has to be taken in context with other courses physical geology, biology, natural philosophy and logic Any and all of these sciences require an understanding of deep timethe hardly imaginable amount of time that the earth has existedand an appreciation of the unimaginable numbers of organisms that lived their lives out in all sorts of ever changing environments.These lectures attempt to examinefrom a survey course levelsome of the natural transitions that have occurred based on a close examination of the rock record, i.e fossiland modern technology For the course to be as effective as I believe it is, one must have a grasp of the basic concept of earth s processes, and an understanding of the concept of uniformitarianism basically, what happened in the past is happening in the same manner today Dr Martin lays the ground work for these very long ago transitions from no cell to single cell to very complex organisms that exploded round about 538 MILLION years ago He further explains, using the fossil record, the transitions within species speciation and then into the evolution into an entirely different specieeach transition carefully documented from the fossil record The case presented is very convincing.Then, enter Dr Hawks with his discussions of the ascent of homo sapiens over the last 4 7 MILLION years His lectures outline the careful studies of the evolution of man using both the fossil record as well as the burgeoning field of genetics and DNA mapping His concluding remarks in lecture 23, as well as the ending discussion between the two lectures requires thoughtsometimes deep thoughtabout who the heck we are and how we got hereand where we might be headed Now isn t that why you re reading this Very much recommended, but don t expect the lectures to answer all your questions Wait for a saleI got the DVD for just a hair over 1 lectureless that a cup of Joe at you neighborhood Starbucks.

  4. says:

    Overall a great introduction to evolution and many of its interdisciplinary subfields I particularly enjoyed seeing the perspective of a geologist paleontologist to start things off and then the tag team to cover human evolution from primates I especially loved the philosophical conceptualization of deep time in analogy with deep space particularly as one considers the even broader idea of Big History Though the professors here don t delve into Big History directly, they re covering a large portion of the cross disciplinary and inter disciplinary studies which underpin a large portion of the field More specifically taking the general viewpoint of transitions in evolution underlines this conceptualization Though the transitional viewpoint seems to be a very natural and highly illustrative one to take, I would be curious in seeing alternate presentations of evolution from a pedagogical standpoint It was nice to hear a bit of alternate discussion in the final lecture as well as discussion of where things might go from here I do wish that there were additional follow on lectures that covered additional material in depth It would also have been nice to have included a handful of lectures from a microbiologist s viewpoint and background to give some additional rounding out of the material and this could have been done either in the early parts of the material or certainly around the discussions of primate evolution Overall all though, these are wonderfully self contained and don t require a huge prior background in material to understand well.It s always great to see lecturers who truly love their fields and have the ability to relate that through their lectures and infect their students From a purely technical standpoint, I m glad to see that The Teaching Company only offers a video version of as opposed to their usual additional offering of audio only as having pictures of the fossils and organisms under discussion and their relative physiological structures was very helpful Additionally having the recurring timecharts of the portions of geological time under discussion was very useful and generally reinforcing of the chronology Somewhat monotonous from a visual perspective was the almost programmatic back and forth pacing between two cameras during the lectures which at times became distracting in and of itself Certainly including a third camera would have added some variety as would having had camera operators to zoom in or move the camera around while the lecturers stand relatively stationary Though the production value here is exceptionally high, small details like this over the span of several hours of watching become important As an example of better execution, I prefer Glenn Holland s Religion in the Ancient Mediterranean as a model though there wasn t as much additional visual material there, the lectures were simply watchable because of the camera work.

  5. says:

    An overview that hits several of the evolutionary highlights, with discussion and sometimes showing of the fossil evidence, some fossils containing amazing detail The last few lectures concentrate on the human line of evolution, explaining and showing that evidence and how scientists draw the conclusions they do You come away from this series with an impression of the sweep of life s development, what is and is not known and how, and with curiosity to know .

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