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Dogs may have domesticated themselves because they liked snacks, model suggests

Pokepokalypse

In my study, (n=2), I can attest, indeed, that both of my dogs will willingly give up roaming outside in the wild for snacks, scritches, and belly-rubs.

thiago_fm

My current dog wouldn't give up. It really depends on the breed.

Some ancient races still have those very old instincts of hunting and being independent, even doing some weird scream when given a bone or a having found a potential "hunt". (that's how people used to hunt!)

Youtube shiba scream :-)

All my previous dogs (>5) would always prefer the snack though.

heraldgeezer

"Some ancient races"

Like terriers, Jack russel etc. lol. They will just go. They will ignore you. Yes we tried having meatballs. They don't care. Hunt hunt hunt. (Male, non snipped)

redeux

I can confirm. My Rat Terrier will absolutely not respond if she gets out. Best I can do is throw tennis balls towards the house so she runs in that general direction, assuming that’s the most interesting thing she’s found to hunt yet.

jon_richards

Is a bred in behavior to hunt vermin domestication or lack of domestication?

alexjplant

A question I've often heard asked with regard to domestic pets is whether they're "food motivated". I've never met a dog or cat that wasn't... is there some rando in Arkansas that has a Dachshund that enjoys true crime documentaries and experimental mathematics more than treats? Or is my impression that fuzzy quadrapeds with walnut-sized brains are universally food-motivated a correct one?

throw4847285

It's a pretty wide spectrum. Here's a fun example. I've fostered rescue dogs before, and two dogs I fostered were on opposite ends.

The rescue org asked all fosters to crate train their dogs. The first I fostered was a lab mix. He hated his crate, but all I had to do was throw one piece of kibble in and he would sprint inside. As soon as I locked the door he would whine, for upwards of 30 minutes, which was hard for a first time dog owner. I kept checking the camera I setup until he finally settled down and I was able to relax. This routine happened every time.

The other one was a Boxer/Pit mix. He would not go into his crate for all the kibble in the world. He just didn't care. He knew what would happen if he went in, so he wouldn't budge. When I eventually managed to coax him inside, and I closed the door, he was totally silent. He made the choice to go in knowing what would happen. This happened every time.

So based on my limited experience, food motivation is not about whether or not a dog wants to eat, but what other desires that desire for food (even when not particularly hungry) will override.

natbennett

“Food-motivated” in dogs means something more like “can be induced to listen to commands from a human in exchange for food.” Some dogs are only interested in their own plans. Others are only interested in really good food, or are much more interested in some other reward, like having a ball thrown.

My dog for instance is not particularly food motivated. He believes strongly that there is “food” and “better food” and will hold off until he’s really hungry to eat something that’s just food. But he’s very motivated by attention. He will do tricks for treats he doesn’t like and then drop the treat on the floor once you give it to him.

dmix

My recall training improved dramatically when I stopped only using treats as he got wise to that game, he would only do that consistently at home or solo. When I started using the come command with a game like tug of war or running away slightly then throwing a ball, he associated it with fun/activity and comes more often now.

idkyall

Someone can likely give you a more technical explanation - but to give an anecdotal example, my parents have German Shepherds which are grazers. They put a few cups of food in their bowl in the morning, and the dogs will eat throughout the day as they're hungry. They like treats, sure, but I wouldn't call them food motivated. My dogs are lab mixes, and if food is out they'll sniff it out and immediately scarf it down. When one was younger, if we left food on the counter or table while he was home alone, he would jump onto the counter and eat it. I would call my dog very food motivated.

fracus

How could you know if the German Shepherds are food motivated if they literally have food available to them whenever they want? I would guess if they were fed at discrete times of the day they would start looking at the owners for food.

roguecoder

That is a difference between "starving" and "being food motivated".

Think about humans: all humans need calories, but some people just want to drink Soylent and other people will spend hours creating elaborate meals. Some people will barely eat because they know they need to, while others will eat until they are sick if they don't stop themselves. Some people will walk miles for the best ice cream, while others will walk miles to see their favorite band.

AnotherGoodName

Try the working breeds (don’t actually do this unless you live on a farm).

For them food is absolutely ignored if there’s a possibility of something to do. Food in a bowl and a ball nearby? Food is secondary to ball. We used to worry about our border collie and have to constantly make effort to lock him in a room with food so he’d eat and not just allow the other dogs to take the food.

Cats can be similarly ‘fussy’ as well. I have two indoor cats, a Garfield (can’t leave food out near him or he’ll eat to the point of throwing up) and one thats play obsessed and not at all interested in food except as needed at the most minimal levels. Makes it hard to feed them since one needs food left out to graze and the other has to be controlled.

rich_sasha

Not sure I'd go as far as "ignored". Family member had cocker spaniels from a working dog breeder (gun dogs). Both would do anything for food. Another has a golden retriever, also from gun dog "lineage" and again, they'll do anything for food.

Sure, they like a ball, or better still a squirrel to chase, but they'll give up that chase instantly for a piece of bacon.

bongodongobob

Came here to say this. I have an Aussie and he really does not care about food. They just want to run and do stuff, food is secondary. I've never needed to use treats to train him either. Good boy and a pat on the head suffices.

staticman2

Some cats are certainly more food motivated than others. One of my cats will get up 24/7 if I shake the treat container and will run to me from anywhere in the house. My other cat will only come for treats if he isn't feeling sleepy or lazy.

eximius

When we first got one of our dogs off the street, she was incredibly food motivated. She would hop the fence and roam and bring back cabbages, avocados, cauliflower, chips, and anything else she could find to snack on. Those are just examples we witnessed. But she always came back before we got home from work.

Now, 7 years later, she's picky. She'll spit out some food I give her if it isn't appealing enough. She can still obviously be motivated with food and treats, but it's far less unconditional.

jajko

Never underestimate the focus on food of a person or any animal who experiences(d) true hunger. I haven't come even close to it, yet the crave for any sort of energy when you are long over burning any sort of energy reserves was gradually overshadowing my mind.

In war times there are stories of people boiling and eating leather belts, boots and similar stuff. Imagine the drive to spend non-trivial amount of time and energy to eat that.

worik

Yes

I have a dog that starved as a puppy (not by me, I rested him, best thing I have done in the last decade).

He is four now, and we have an extensive routine securing every acces to food like substances when he is left alone.

Other dogs I've had, not so much

nosioptar

I've got a cat that doesn't have any interest in treats or table scraps. She spent most of yesterday watching Breaking Bad.

My other cats are all at least normally motivated by food.

silverlake

My first dog was not food motivated.

Molitor5901

I, too, was domesticated because I like snacks. :)

roguecoder

One of the hypotheses for how civilization emerged is that humans domesticated each other. Every time I take a neighbor some cookies I think of it as me doing my part for human evolution.

tombert

Me as well. I have a theory that that's why every tech startup always has a bunch of snacks in the kitchen.

LoganDark

is this why RDJ would always bring snacks to the Marvel sets

tombert

Until I see evidence to the contrary I am going to just take this as fact: RDJ was trying to domesticate his coworkers.

RobotToaster

There's a theory that wheat domesticated humans, that isn't far from that https://www.smh.com.au/opinion/slaves-to-wheat-how-a-grain-d...

hn_throwaway_99

Lol, I read this and my first thought was also "Yeah, humans too."

dmix

There was also a study that showed dogs are healthiest when they eat a single meal a day (as opposed to the usual twice a day most people do). https://www.newsweek.com/dog-feed-once-day-cognitive-health-... Behaviour isn't always aligned with biological needs though.

aurareturn

  The model showed that over 15,000 years, natural selection could potentially drive dog self-domestication. But for this to happen, two conditions had to be met: Wolves had to choose to stay near humans to eat food scraps, and they had to select mates with a similar temperament.
Why would humans feed wolves scraps without them providing something of value in return?

Wolves have to provide something to humans in order for humans to keep feeding them right? In this case, humans would want some wolves around them. Therefore, it seems very unlikely to be self domestication because humans would have a heavy sway in how dogs evolved.

nyrikki

Ever visit any national park or even city park where people are feeding ducks, squirrels, birds etc???

What 'value' outside of entertainment does that provide to the humans?

AnotherGoodName

On this point I’m convinced that bears are well on the way to domestication.

National parks have a name for the ones starting to show domesticated behaviours - ‘problem bears’. Bears that go out of their way to interact with humans. I feel that’s a case study for domestication right there.

6SixTy

Issue is that for domestication to be possible, there has to be a preexisting social structure like herding, colonies, or packs. If it's too weak or non existent, there's no chance that domestication is possible.

There's an additional risk with omnivorous/carnivorous animals could see people as prey, and this risk pretty much goes up with the size of the animal.

rich_sasha

IME bears are sadly quite thick. They will get used to humans but also easily feel threatened by them. So first they won't keep their distance, but then may well act aggressive / threatened. They'd need to somehow lose the aggression to continue on the road to pethood.

Based on many reports of brown bear behaviour in the Carpathian mountains and an N=1 natural experiment.

ravetcofx

Raccoons too. There's some in our neighborhood who hold out their hands to beg

SideburnsOfDoom

I've seen "problem baboons". The issue with baboons is that they are clever and dexterous enough to do things that other wildlife does not. They know to pull on door handles. So they can get into a kitchen via an open window, open cupboard doors until they find the one with the cold food inside, leave the door open, haul the food out, eat some, shit on the floor, climb up the drainpipe onto the roof with some of their haul etc.

They're clever enough to scatter when someone raises a rifle and points it at them; but they'll do the same if you use a wooden walking stick.

And of course they're highly social, seldom encountered alone.

geodel

Besides that, in wolves' case it would be the meat that would rot or invite other predators. Better those standing by wolves finish of the scraps.

bityard

Humans have always like having pets and frequently interacted with all kinds of nature before the industrial revolution, which is an extremely recent event in human history.

Although it turns out domesticated dogs have a wide number of uses _now_, early humans had no idea that would be the case, they probably just liked feeding the wolves.

Edit: there is also speculation that "feeding" wasn't entirely deliberate, that wolves started eating scraps from the garbage piles close to early human settlements and the ones that were friendly to humans (likely children especially) evolved closer and closer into dogs.

darth_avocado

Yeah I wouldn’t imagine that “feeding” was anything but wild animals realizing that human encampments have food and therefore need to follow them around or be in their proximity. The animals that would present themselves with aggression, would potentially be killed by the humans and the ones who would keep a more tame approach would be tolerated by humans. Over centuries, the tame behavior turned into domestication.

relistan

Providing them less desirable—to humans—-scraps would have likely prevented competition with them in hunting game. Why hunt living game if you can wait around and get scraps for free? So original intention of humans likely not domestication, but still leads that way if the wolves get what they want.

aurareturn

That doesn't make sense to me either.

So humans give them food so they don't compete with humans in hunting. The wolves would get full from humans, don't have to hunt, and spend all their time reproducing, which will create even more competition for humans.

relistan

That’s not how reproductive cycles work.

bluGill

Humans and wolves appear to have cooperated in their hunts. The two can do different things and so together have more success that either alone.

jmull

> Why would humans feed wolves...

It's the same reasons they feed dogs.

stevenjgarner

Just to expand on that, humans keep dogs not just as pets but as guard animals. It could be imagined that early humans feeding wolves to keep them around might also present a deterrent to aggressors.

thaawyy33432434

Dogs also hunt rodents, they can lead you a dead deer, find a rabbit hole. Dogs chew on skins, bones and eat other parts that humans don't like.

Dogs could be source of calories as well....

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AngryData

Well without wolves around it would leave more room for other, potentially much more dangerous, predators. And big cats once roamed most the entire world and are definitely more dangerous to humans than wolves.

dboreham

Where I live we still have the megafauna and can confirm that pretty much none of them will mess with large dogs.

SideburnsOfDoom

> Why would humans feed wolves scraps without them providing something of value in return?

Human beings aren't all always that transactional. "Homo economicus" is joked about for good reasons.

You can easily imagine situations where a) food is in a temporary surplus due to a successful hunt, so there is little downside to wasting some and b) a sentimental child has access to it.

metalman

close, but of course far more complex, Wolves are savy negotiators, highly social, and often (not always) fun loving, the variations in personality amongst them is large.Wolves team up with Ravens, another species with complex behaviors, ravens work as airial spoters, and wolves take out the targeted prey, with both sharing the kill, in exceptionaly close quarters, it's easy to see that those roles could change, with humans around, and there is a limited window to prepare and consume, and drag off a large kill, before it atracts an apex preditor, or just a huge flock of hungry birds, that can decimate an untended carcas in miniuts.So teaming up, rather than dependency, is the most likely begining. Archiological work on wolf dens, show that choice sites in the Canadian High Arctic, have been in continious use for 10000 years, by Canadian Wolves showing that a core group, will maintain a teritory, indefinitly.....even with humans and other large dangerous animals around... Peoples view of dogs, is often based on experience with what are breeds that are strictly house pets and have been inbred to the point of bieng helpless morons or neurotic edgy wierdos, but that one central behavior, of guarding what and where they are instructed to, remains.

gus_massa

> Wolves team up with Ravens

I had to search it. For example https://www.yellowstone.org/naturalist-notes-wolves-and-rave...

thiago_fm

There are plenty of humans that got a 100% wolf and managed to keep them around, even in modern times.

In the past, people were always looking for ways to automate hunting, just like we do with technology, as this was the hardest thing.

And if you ever hunted, imagine having a wolf around when you hunt, it's nuts. They are so powerful and can so easily find prey, they have sick instincts too, much better than humans.

Pair them together and you can understand why that combination works so well.

Our ancestors also gave up lots of surviviability skills to become homo sapiens together with our beloved doges.

Ekaros

I would also guess that in some early stages of domesticating other animals feeding the animals that might prey on those animals could effectively lessen the predation.

WarOnPrivacy

I will apologize to dogs in advance for any insensitivity I might show here.

My relationship with dogs is complicated. Once I read that their eyes rounded in response to their long adaptation to humans, I started feeling a little remorseful. Their Family is fundamentally altered and some of their natural self has been remolded to serve as our adjunct.

I know we didn't set out to do that but I regret it some, nonetheless.

In regard to all pets, I've come to feel a debt for sacrificing their independence. I feel an obligation to understand them, to accept them as what they are and to treat them in a way that respects that being. Hopefully they'll receive some fulfillment they otherwise wouldn't have.

But with dogs, that obligation feels uniquely expansive. I don't really know how to do it justice.

inahga

I don't think this is a rational feeling, but I can relate.

I've successfully trained my dog to be non-reactive towards squirrels/birds/etc. on walks. The other day she walked by a rabbit from within a few feet, and hardly gave it even a look. And I felt bad, as though I've suppressed her natural self and ability to be excited about such a thing. She's now pacified to live in my world.

An irrational feeling, because she's now at much less risk of being run over by a vehicle, but it was a feeling nonetheless.

bregma

Dogs are social pack animals. It is their nature to work with the pack following social rules of order and behaviour. That is paramount and fulfilling that obligation is more important than chasing a lagomorphic snack to the detriment of the pack.

By following your (the pack's) rules your dog is being truer to their nature than chasing a rabbit would be.

WarOnPrivacy

>And I felt bad, as though I've suppressed her natural self and ability to be excited about such a thing. She's now pacified to live in my world.

> An irrational feeling, because she's now at much less risk of being run over by a vehicle, but it was a feeling nonetheless.

I think this respects my position and my intent. You're being a pragmatist, giving her the best life possible.

Speaking to changing her nature and protecting her. They might not be in harmony but they both suggest thoughtful, considerate reasoning. And it's okay if they aren't in harmony; a future understanding might reconcile them.

dillydogg

I've thought about the same. Dogs have "eyebrow" muscles that wolves do not which make their expressions more human-like. Domesticated dogs have William's syndrome [1], which is a human genetic disorder which leads to many changes, one of which is hypersocial behavior. Essentially, I think that our modern relationships with dogs are just plain weird. I don't think pet ownership is for me but am happy so many people find their companionship valuable.

1. https://www.science.org/content/article/what-makes-dogs-so-f... (Link to the primary text is in here but I find the scientific news articles to be easier to read)

abdullahkhalids

> I know we didn't set out to do that but I regret it some, nonetheless.

This is not correct. Humans have been selectively breeding animals and plants for thousands of years.

Also dogs, for most of human history, provided services (hunting and security) to humans in exchange for "petship". It's only a very recent phenomena that (many but not all) pet dogs have to provide nothing to humans besides companionship. It is now that the maladaptation in dogs have started to appear because of the one way relationship.

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GenerocUsername

You must deep down actually hate yourself or all of humanity to feel such remorse for the impact we have had on nature/dogs. Doesn't sound healthy

chneu

Wow what a weird comment to make.

Having compassion for another living, feeling, emotional creature means they must hate themselves?

Oof what a lame take.

WarOnPrivacy

> You must deep down actually hate yourself or all of humanity

I don't. I'm not less for thinking more of something that isn't me. I'm arguably more for embracing more value than I started with.

Your assertion seems stark. Do you really feel my perspective is likely fueled by self-loathing? If so, what is it about human nature that led you to that?

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mystified5016

Domestication is an evolutionary strategy that has ensured that many species will exist for as long as humans will.

Assuming humans don't wipe themselves out, dogs and cats and many other species will outlive the Earth itself.

If humans are the most successful species on the planet, dogs are second.

Dogs as an entire species would not exist at all without humans. If dogs hadn't co-evolved with humans, we'd only have wolves. It's more than just simple domestication like cats and goats, dogs evolved into a new species alongside early humans. They aren't simply wild animals that tolerate humans, this is an entire species specifically evolved to be the ideal companion to humans. The entire point and purpose of this species is only to be companions to humans, that's what they evolved to be. By and large dogs need human companionship and suffer without it.

While the relationship between humans and dogs is very symbiotic, I think dogs get the better end of the deal. All their needs and wants as a species are taken care of by humans, the species will exist forever, and all the dogs have to do is learn the best way to beg for belly rubs.

We have dogs because dogs want us to have them.

WarOnPrivacy

> Domestication is an evolutionary strategy that has ensured that many species will exist for as long as humans will.

I agree. Outcomes always matter. Not exclusively but they're up there.

> Dogs as an entire species would not exist at all without humans. If dogs hadn't co-evolved with humans, we'd only have wolves.

True. And I appreciate the existence of dogs. I also appreciate what they gave up to be. One notion doesn't quash the other. The two viewpoints coexist and make the relationship complex.

I should clarify that my perspective doesn't demand that something must happen or that some thing must not be. At most, it suggests 1) that we value the independence of animals - to our benefit as well - and 2) it's okay to morn a little for what dogs gave up to be dogs. The worst you'll get from #2 is finding more reasons to treat dogs well.

thoroughburro

Wheat may have domesticated us because we like bread.

hammock

Wheat domesticated us because agriculture put the politics and power into the hands of the landowners (whoever is big enough warlord to control arable territory)

wil421

Plants evolved animals to spread seeds.

jsbisviewtiful

Hasn't this been determined for quite some time? "Wolves found out they could get easy food and some shelter by working with humans" is a determination I've been seeing since at least the 00's, maybe even 90's.

justinzollars

My dog agrees.

lazyeye

The silver fox domestication experiment that ran for 60 years

https://evolution-outreach.biomedcentral.com/articles/10.118...

dlivingston

Great article. The addendum on Soviet "scientist" Trofim Lysenko at the end was almost more interesting than the fox study itself!

enoeht

What does the Model say about parasites, they like to snack too (:

baron816

Peckish pups