CARTA:Domestication and Evolution- Tecumseh Fitch:The Domestication Syndrome and Neural Crest Cells

University of California Television (UCTV)

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(Visit: www.uctv.tv) The neural crest is a transitory embryonic tissue that, early in development, gives rise to a very diverse set of tissues and organs including pigment cells (melanocytes), bones, muscles and connective tissues in the head, and the adrenal gland. Tecumseh Fitch (Univ of Vienna) hypothesizes that the selection for tameness during early stages of domestication led to delayed maturation and reduced output of the adrenal component of the “fight or flight” response, via reduced neural crest input. This led, as an unselected byproduct, to other neural crest-derived tissues also being reduced, resulting in short snouts, smaller teeth, floppy ears, and changes in pigmentation (e.g. white spots). Recorded on 10/10/2014. Series: "CARTA - Center for Academic Research and Training in Anthropogeny" [Science] [Show ID: 28900]

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7 дек 2014

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Комментарии : 41

@HladniSjeverniVjetar 5 лет назад

You understand that if this is true for animals and plants than it's true for humans as well.

@mildredmelusine6970 5 лет назад

Me on a first date - Would you mind if I tested the floppiness of your ear cartilage?

@z.deutch1334 5 лет назад

Could lighter hair and neoteny of facial traits be a form of human domestication?

@matte6352 4 года назад

Someone tried just this, one time. Apparently, it was considered“pseudoscience” at the time... What was his name, what was his name? Oh, that’s right...

@curtiswilson859 4 года назад

There is evidence that female bonobos selected for more tame males in a process analogous to domestication. Wonder if their closest non-chimp relatives did the same...

@user-dz2hj6jo5h 3 года назад

Joshua Hanley but we are more likely to not be lactose intolerant. You win some you loose some. Now go eat some ice cream 😂

@thisisgonnabegoodiknowit9413 4 года назад

The black/white coloring - if it's a warning sign for wild animals, as in the skunk - is probably also a warning sign of domesticated animals, meaning "Hey, I'm with the most dangerous killer on the plant. You don't want to mess with me."

@memomorph5375 3 года назад

Huh, so in a macro sense, we also domesticated each other over generations I breed gerbils for tame-ness and a new white spotting gene cropped up

@idk-bn7hx 2 года назад

The first pride was a riot, YESS please comment more so people see this!

@punchoponcho5238 2 года назад

I absolutely cannot wait for my offspring to have cute black and white patches on them.

@Kenkasan 5 лет назад

So, it's 4 years later : D

@W1NDUR 5 лет назад

mhm

@misnomerthecarolina 5 лет назад

Why are we all commenting on a 4 year old video in a 24 hour period? Why is it that This million years of evolution and education is still just being used to sell 30 second ad space on RU-vid?

@chrisporter2912 5 лет назад

Well I'm here cause I watched Verge Science's video "We met the world's first domesticated foxes" and they mentioned Domestication Syndrome, so i looked up a video and this was the first one on the list.

@Lngbrdninjamasta 5 лет назад

Likewise

@JoeSB129 4 дня назад

Nine years as of 2024.

@A.I.- 5 лет назад

Millions of years through evolution... 50 years of breeding... how long does it take for GMO done in the lab?

@melmelhodgepodge3800 4 года назад

Genetically modified organism means literally ALL domesticated species of plants.

@michaelsandoval7717 4 года назад

1:15 Sherlock Holmes was also the Quasimodo 😳

@notayoutuber1856 5 лет назад

My husky is an asshole with erect ears that kills bunnies. Maybe it’s neural crest was reduced much

@stupidmansuit975 4 года назад

Why wouldn't these phenotypical changes show up simply due to an absence of natural environmental pressures? These domesticated animals aren't going to die because they can't balance, hear, chew, blend in...etc... right?

@mistersir3020 2 месяца назад

1:21 No doctor does that

@mistersir3020 2 месяца назад

Nobody should care about finding some gene. We can perfectly observe that for genetic reasons the neural crest doesn't develop as fully. No need to ever find specific gene. (same goes for I cue points in humans too, by the way)

@technopoptart 5 лет назад

uh.... haven't rats been domesticated since the 50's though???

@technopoptart 5 лет назад

dude, the joke is that when alberta did the massive rat genocide in the 50's all that were left were pet rats. fancy rats have been bred specifically as pets all the way back as far as the beginning of the 20th century so yeah.... maybe you should consider that possibly if someone is saying something really strange and saying it in a way that is not standard english(but are at least conceivably english-speaking) that there is something to it but yeah, thanks for blindly barrelling in without knowing what is going on XD you really put me in my place, there! i will be sure to remember in the future this scathing critique of my clear lack of understanding -thumbs up-

@keiahnigbruder1453 5 лет назад

technopoptart who or what was alberta ?

@monkeydog8681 5 лет назад

The Pied Piper of Hamelin.

@technopoptart 5 лет назад

Fiore Meroni surely you are joking, it's a place, in canada......it's twice the size of brittan and home to wood buffalo national park, the second largest national park in the entire world

@technopoptart 5 лет назад

Jaydee Eloen pet rats actively seek out their owners and, in some rats actively seek out humans in general. they also often electively choose to eat, sleep and clean themselves near or on their owners without prompting. i used to have a pet rat and knew several people who also kept them. rats that do not seek out human interaction generally are either ones that have not been handled much or at all or else have been abused.

@mistersir3020 2 месяца назад

mystery solved

@dantan1249 4 года назад

i think it just means that the genes for those features evolved with certain behavioral traits.

@dirtyweapons3459 5 лет назад

Mmmmkay?

@beren1223 3 года назад

We humans need to selectively breed for tamer and more domesticated people too. We need to breed aggression out of humans and greater empathy and compassion into them; most especially of our males.