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Parasite gives wolves what it takes to be pack leaders

nature.com

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Re: Parasite gives wolves what it takes to be pack leaders

#181
post #180

Earlier quoted context omitted.

Link to * * Comments * * Which is what I posted [ 1 day ago - 5 comments ]: https://news.ycombinator.com/item?id=33738581 Which is related to the Link of the actual Article; *Grey wolves infected with this parasite are more likely to become pack leaders* : https://abcnews.go.com/US/grey-wolves-infected-parasite-become-pack-leaders-scientists/story?id=93487254

I'm sorry, I truly don't follow what you're trying to say. What does the "also" mean, it's always the same story ! There's no additional information, it's always about the same study about the same parasite on the same group of wolves! I'm not pulling your leg, I truly don't follow your point.

Looking at both Articles' time-stamps, you will see;

2022-11-25 UTC 02:39:08 Grey wolves infected with this parasite are more likely to become pack leaders

2022-11-25 UTC 09:44:33 Parasite gives wolves what it takes to be pack leaders

Obviously; Grey wolves infected with this parasite are more likely to become pack leaders

Precedes; Parasite gives wolves what it takes to be pack leaders

Hence my post.

Re: Parasite gives wolves what it takes to be pack leaders

#182
post #180

Earlier quoted context omitted.

I'm sorry, I truly don't follow what you're trying to say. What does the "also" mean, it's always the same story ! There's no additional information, it's always about the same study about the same parasite on the same group of wolves! I'm not pulling your leg, I truly don't follow your point.

Looking at both Articles' time-stamps, you will see; 2022-11-25 UTC 02:39:08 Grey wolves infected with this parasite are more likely to become pack leaders 2022-11-25 UTC 09:44:33 Parasite gives wolves what it takes to be pack leaders Obviously; Grey wolves infected with this parasite are more likely to become pack leaders Precedes; Parasite gives wolves what it takes to be pack leaders Hence my post.

Your post : https://news.ycombinator.com/item?id=33741940

To the thread : https://news.ycombinator.com/item?id=33738581

2022-11-25 UTC 12:55:33 >the_af 1 day ago

"More likely to become pack leaders" simply means "more likely to leave and start their own family", right?

Is the last time-stamped of the 5 posts to that thread, so you saw these other posts in the thread;

2022-11-25 UTC 03:41:57 codexjourneys 1 day ago : https://www.earth.com/news/parasite-makes-infected-people-lo...

2022-11-25 UTC 12:47:53 codexjourneys 1 day ago : https://www.science.org/content/article/evidence-mounts-gut-...

Trouble_007 1 day ago : Toxoplasma gondii : https://en.wikipedia.org/wiki/Toxoplasma_gondii

Risk factors for human infection : https://en.wikipedia.org/wiki/Toxoplasma_gondii#Immune_respo...

>I'm not pulling your leg, I truly don't follow your point.

Yes, I did check your Profile, and I did wonder.

User: the_af : https://news.ycombinator.com/user?id=the_af

Created: November 13, 2013 - Karma: 10648

Submissions : https://news.ycombinator.com/submitted?id=the_af

Comments : https://news.ycombinator.com/threads?id=the_af

Favorites : https://news.ycombinator.com/favorites?id=the_af

Edits: for format etc.

Re: Parasite gives wolves what it takes to be pack leaders

#183
post #120

Earlier quoted context omitted.

I had this thought but doesn’t the pack mostly eat the same thing?

Not those that set out on their own, and thus are more likely to catch rodent while alone than feasting on big prey with the pack... Unless they can pinpoint the infection and a subsequent behavior change, it's not super conclusive. It's like concluding catching an IST makes you more promiscuous, even if that would likely be supported by statistics...

> Not those that set out on their own

That doesn’t work because they knew the full life history. They knew whether they were infected before they set out on their own or not.

Re: Parasite gives wolves what it takes to be pack leaders

#185

Earlier quoted context omitted.

They discuss it briefly and it turns out the above commenter is 100% correct in his assessment. Relevant quote from the paper: >Given the correlational nature of the study, observed patterns may not be causal; for example, higher risk-takers could be more likely to be both entrepreneurial and exposed to T. gondii [...], thereby driving the correlation. Remember that while it might sound amazing that a parasite could…

> there is no practicable mechanism suggested so far There is, actually. T. Gondii has the genes to make tyrosine hydroxylase which is a dopamine precursor. It also visibly modifies rodent behavior around cat urine. Robert Sapolsky is one of many researchers narrowing in a mechanistic model of how parasites can influence host behavior. https://pubmed.ncbi.nlm.nih.gov/17404235/ https://www.edge.org/conversation/robert…

The situation is by far not as clear as you would suggest here. The dopamine gene for example was shown to have no effect on neurochemistry in mice [1]. Even on the surface, there's a lot more to possible Toxo induced behaviour changes than just dopamine, as evidenced by neuroinflammation or cysts in the amygdala. Noone has figured out how these things actually work so far. And diminished fear response to smells in mice is a long way from general entrepreneurialism in wolves.

[1] https://pubmed.ncbi.nlm.nih.gov/29555339/

Re: Parasite gives wolves what it takes to be pack leaders

#187
post #183
post #120

Earlier quoted context omitted.

Not those that set out on their own, and thus are more likely to catch rodent while alone than feasting on big prey with the pack... Unless they can pinpoint the infection and a subsequent behavior change, it's not super conclusive. It's like concluding catching an IST makes you more promiscuous, even if that would likely be supported by statistics...

> Not those that set out on their own That doesn’t work because they knew the full life history. They knew whether they were infected before they set out on their own or not.

That's misunderstanding brohee's post, which isn't talking about them leaving the pack but about them hunting individually before that time.

Which mightn't be what wolves do but that doesn't matter, it's a thought experiment.

Re: Parasite gives wolves what it takes to be pack leaders

#188
post #116

Earlier quoted context omitted.

Care to elaborate?

Play on words Cell colonies are cultures & this is on the topic of infection.

Hehe, gotcha. I always forget about this meaning of "culture" in English, since the word we use in Spanish for "lab culture" is different ("cultivo"... closer to English "crop"!).

Re: Parasite gives wolves what it takes to be pack leaders

#189

Earlier quoted context omitted.

Looking at both Articles' time-stamps, you will see; 2022-11-25 UTC 02:39:08 Grey wolves infected with this parasite are more likely to become pack leaders 2022-11-25 UTC 09:44:33 Parasite gives wolves what it takes to be pack leaders Obviously; Grey wolves infected with this parasite are more likely to become pack leaders Precedes; Parasite gives wolves what it takes to be pack leaders Hence my post.

Your post : https://news.ycombinator.com/item?id=33741940 To the thread : https://news.ycombinator.com/item?id=33738581 2022-11-25 UTC 12:55:33 > the_af 1 day ago "More likely to become pack leaders" simply means "more likely to leave and start their own family", right? Is the last time-stamped of the 5 posts to that thread, so you saw these other posts in the thread; 2022-11-25 UTC 03:41:57 codexjourneys 1 day ago :…

There's no need to post my user information as if it were hard to get. This is public information and any HN user knows how to find it.

It also feels very random, like it doesn't connect at all with any part of our conversation.

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