3. Behavioral Evolution II

[janinthesky88]

Weaker trait individually can outcompete aggressive trait when in group! (study of religion by david sloan wilson)

Multilevel selection- gene, phenotype or group traits

Critcisms of behav competition

Heritability-show me the gene!

Adaptability-SJGould,lewington­-spandrels-byproduct of selected traits, abiotic factors

Gradualism- jerks step model than creeping steady

Political implications!

[janinthesky88]

Intersexual competition in tournament species(TS)

Imprinted genes in TS- work dif based on where they are from- Males code for greater foetal growth, female-less to preserve future reproductive potential

Sperm competition, females detoxify increasing toxicity of males

Emigration after puberty Chimps have female exogamy, have united males- watch their border, genocide of other groups

Inbred small group evolves faster Foundation driven behav effect- big group must incorporate to succeed (tit4tat?)

[janinthesky88]

Summary

Competitive infanticide by new males who have lower alpha period than nursing period of females

Females miscarry with olfactory signal of new male- lower cost. Or pseudo ovulation (estrus) Older females protects kids more. Maternal grandma!

Kidnapping of other male's kids before fight. Mistakes- primates think!

Dominance nepotism

Sex fluctuations based on hierarchy and env stress Males are more costly

AdelphicPolyandry in stressed farming areas to combine as one reproductive unit

[Danieltprout]

Prof. Sapolsky rocks. So funny and smart. Best segments on Radiolab.

[nuqleo]

genio

[narcomanel]

So, how can I get the papers, the handouts?

[PlateMailArmored]

It used to be those religious people coming here to talk about god as only salvation and so forth, now are these cultist RBE worshipers kids who think are the cream of the cream because they watched a biased movie online.

Sapolsky is one guy who actually in this exact lecture series debunks what a RBE proposes.

Humans are far much complicated than what a RBE believe it is.

Please read Seeing Like a State, and watch Die Welle. Than watch this lectures.

Whoop! RBE goes down the drain.

[evilyig]

@PlateMailArmored wtf is an RBE?

[PlateMailArmored]

@evilyig Man, you better not know. It's a waste of time I promisse you.

I'll soon create an account to post anticultist content, and I'll create a list of videos explaining the flaws of this rbe system, sourced.

Whoever wants light on the mind keep track of Sapolsky materials. Stick to it and transcends. This is like pure gold.

[DJKAYZEE]

@PlateMailArmored stop being a pervert nerd, and start making a diference in the world, if you dont like RBE, and rather live in a capitalist society, whats the difference between an RBE cultist and a free market capitalist cultist,

capitalism , now thats a utopia,

you are one lying piece of human venom

[PlateMailArmored]

@DJKAYZEE You don't even know me to talk this complete bull. You must be a cultist.

I completely deny the validity of free market, I completely accept capitalism as outdated.

And I completely deny your RBE garbage based on 1950's science.

And, based on what evidence you can prove I'm a "pervert" and "nerd"?

Do you know this is moral offense and you can be legaly prosecuted?

[DJKAYZEE]

@PlateMailArmored sue me

[KenMacMillan]

It's easy to see how group selection should influence immigration laws.

[KenMacMillan]

I'm beginning to think that at some point in our evolutionary history there were two species of humans that intermixed.

[plutarkosky]

@KenMacMillan Homo neanderthalensis and Homo sapiens?

[KenMacMillan]

@plutarkosky The genetics just aren't there. Maybe when we were still Australopithecus or something. Like if Chimpanzees & Bonobos crossed paths in the wild.

[slashes1122]

@KenMacMillan fucking aliens man messing with primitive primates genes making us

[MasAppealTheGreat]

Can someone point me towards the next part?

[freethinkerer]

@MasAppealTheGreat I think you go to the molecular genetics video next. If you look at the beginning of this video, Sapolsky goes through the planed lessons and he notes, on Monday, we will go through molecular genetics.

It's a great lesson so far eh?

[MasAppealTheGreat]

@freethinkerer Yes indeed, and thank you for helping me out. Very interesting stuff indeed. So happy to see information like this being made available to the public. It's just too bad more people don't take advantage of stuff like this.  They'd rather watch Jersey Shore or some other stupid ass tv show...

[freethinkerer]

@MasAppealTheGreat No problem. I am just starting this journey of watching these lessons. Going to watch the molecular genetics lecture today.

Jersey shore is for losers. Did you see them do the mock Jeopardy show? They are idiots. I see their instinct for passing on genes is strong though.

Have you seen Sapolsky on Zeitgeist? I also like his ideas on religion.

[MasAppealTheGreat]

@freethinkerer Fortunately for me I don't have cable tv. Yes I did see Sapolsky on Zeitgeist. That movie was a turning point in my life. I don't think I've been the same since I saw it. I've gotten side tracked from these lectures but most definitely need to finish them. I already learned a lot from the few that I did watch but know I need to continue because it all adds up.

[freethinkerer]

@MasAppealTheGreat Can I ask, what did the movie make you change in your worldview? Are you religious?

[MasAppealTheGreat]

@freethinkerer Sorry didnt realize you asked this question...Well I'm referring to the most recent one Zeitgeist Moving Forward. I've never been really all that religious, spiritual maybe.... but I have always been a thinker and had deep concerns for society and the future of humanity since a fairly young age. Before I found the movement for an RBE though I was slowly being sucked into the system. Thankfully that movie re-established my concerns for it showed me that there is a solution.

[freethinkerer]

@MasAppealTheGreat RBE? I am not so sure the solutions offered in the movie are realistic. It is a bit of a Utopian world that I have doubts will come. There is a theory that claims any communistic society such as this, would quickly be ruled by someone who would use tyranny to make the citizens do as expected. I also wonder if most would ever think personal material goods were not needed to show status. We are just animals.

[MasAppealTheGreat]

@freethinkerer You ought look into it a bit deeper. The movie only scratches the surface. This society is far from a Utopia. It's easy for people to think that simply because its so much better than what we have and in today's world when something sounds too good to be true it usually is. This is not the case with the RBE. It is very possible. It will completely annihilate any sort of hierarchy. That's part of the reasoning behind it. Nothing is ever perfect as the concept of Utopia....

[MasAppealTheGreat]

@freethinkerer ....implies. In fact, structuring society like this would leave plenty of room within the structural design of the infrastructure and the mental standing of its citizens to make improvements in scheduled intervals as new technologies emerge. Whereas today we have the stifling of such improvements because such things cost money. In this society the best of the best would be utilized to benefit all. These solutions are very realistic and based in scientific research.

[slashes1122]

@freethinkerer uhm i think you should research current technologies, this isn't that current but damn, photoelectronic cells are basically solar cells but work with any kind of light i think... correct me if im wrong... after learning about that i think a RBE is alot more possible.

[MasAppealTheGreat]

Can someone point me to the following lecture?

[psilopsych]

what are the books used in this course

[HenricPloman]

@psilopsych Chaos: Making a New Science by James Gleick and one written by Sapolsky himself. He never mentioned the name of the book but it shouldn't be that hard figuring out

[Bax7a]

If there's one thing I've learned from the bearded proffesors lectures so far it's that a chicken is an eggs way of making another chicken, shit, an egg is a chickens way, oh balls.

[sirLEVITSKY]

This lecture is way better than Justin Bieber. Thumbs up if you're listening to this in 2011.

[Cycladius]

Mind = Blown

[sharang2]

Holy shit, guys...

NATIONS EVOLVED AS A WAY TO INCREASE REPRODUCTIVE SUCCESS.

[PattyBio100]

Fantastic and fabulous lecture! Thank you.

[CalamityUnleasher]

I know Sapolky a long time by now, many many years, but this guy here is a machine! He nevers stops and his speech is so awesome and explains tremendously well. I've elected him as one of the top 3 professors I know, and this proves it. This is priceless. Also check out The astronomy professor alex fillipenko, another teaching machine with a peculiar feeling and style of teaching, and his constant smile while teaching is epic by now. Sapolsky rocks!

[necronoir032789]

Now when I walk into a bar I see a bunch of males in sexual competition for females in heat during a coutship ritual for mating.

[Atharkas]

@necronoir032789

That's sort of like a profesionnal deformation!

[freethinkerer]

@necronoir032789 Yes, it is like watching the nature channel. Women are all posing and the males are puffing up, stalking and trying to do a dance to show his strengths. Quite entertaining.

[Zygote1989]

Thank you Stanford, for making the world a better place.

[rabiesman888]

were can i find the catch up classes?

[OneMileyCyrusFanVlog]

Great !!! the CCs are back :)

[23inflicted]

So the plot of the lion king was based off this!?

[muziektelevisie]

I love these lectures. Little off-topic, but are there any great lectures available on yt on the evolution of consciousness?

[GnarlinBrando]

@muziektelevisie keep watching the course. It comes up, also you could look up Daniel C Dennet, and some of Stephen Pinkers stuff gets into that, but it is not very well defined as it is qualia and mostly still stands in the realm of philosophy and speculative science.

[narendeepan]

nice beard

[MarkoKraguljac]

Great lecture. 

[SalsaTiger83]

No, males that don't fall for preostrus don't fare better, because they probably would have to kill every infant, incurring more chances to be hurt by females, and maybe even killing his own children once they were born, because more sophisticated "pregnancy/fathership logic" will be pretty hard to evolve into the brains. It might happen, but in this monkey species the males aren't so far along yet.

[LithiumLogica]

But punctuated equlibrium is only a micro description of macro evolution. As in, you zoom out far enough on that little zigzaggy line and it'll look like a smooth curve.

That isn't to imply that punctuated equilibrium is wrong, it seems more likely that it's just a more focused explanation of the overall evolutionary changes.

[AceObrin]

@LithiumLogica I think punctuated equilibrium is actually the macro description. Smooth, "rapid" change is generally only seen after mutation or some combination of adaptation or environmental change that provides an impetus for widespread genetic change. Most of the time, the genetics are fairly stable and any disproportionately large amount of genetic change tends to occur in a disproportionately short timescale for the aforementioned reasons. That's why the step model is favored.

[AceObrin]

@LithiumLogica If you "zoom out" as far as you seem to be implying, where widespread genetic changes smooth out, you'd end up seeing branches on something more like a phylogenetic tree; speciation, in other words.

[hedonism13]

Epic beard.

[2eelShmeal]

@hedonism13

That's nothin!!!!.....

You should see my ballsack.....

[pyrrho314]

@hedonism13 : for a second I thought this was in the official description, har