Why Dogs Have Floppy Ears: An Animated Tale
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- Опубликовано: 28 авг 2024
- This question vexed Darwin - and now we have a fascinating answer.
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As for why cats specifically have upright ears....I heard a theory from a few different places that cats weren't really intentionally domesticated by humans like dogs and pigs were. They just basically hug around human settlements because there was a lot of mice there, and humans appreciated their hunting and thus did nothing to drive them away. This means cat domestication could be a good deal less thorough than that of dogs.
And cats still think they domesticated us, so it'd be tricky to go back and clear stuff up about how they were supposed to do it.
Wolf packs had kind of the same strategy, though
Yes, but they still seemed to have gone through a lot more selective breeding by humans. Look at the variety between dog breeds as compared to cat breeds. True both have diversity, but dogs tend to have more drastic differences from each other than cats do. Humans have simply paid more attention to breeding them in specific ways.
cats dont work for us. They're more independent than dogs.
@@Wisprsinthedrk you can blame the kennel clubs of the 1800s for all the drasrically different dog breeds we have today. It was very popular among europeans and resulted in breeds like bulldogs, Bassett hounds, and pretty much every popular breed available today.
Why is your dog purple? I'm concerned
KeenieCrisp lol
I think you should question Blue the dog or Clifford first.
too much bepis
It is a genetic thing
(This is a joke I actually don’t know why his dog is purple)
I was just going to say that lol
Surely cats have domesticated us, right? That would explain the upright ears of cats. But it wouldn't explain why we don't have floppy ears...
MLeoDaalder yeah, you must be aware about how parasites in their poop cause humans to become almost mind controlled in favor of cats.
+MLeoDaalder As you might expect, the science shows that cats domesticated themselves: news.nationalgeographic.com/2017/06/domesticated-cats-dna-genetics-pets-science/
Anchor Senjaro - I can't tell if you are joking or if you actually believe all of that. Toxo does not control peoples minds. Toxo is harmless to a normal healthy human.
If you do ever get infected, you will most likely not notice. You may feel a tiny bit sick, but your immune system fights it off within a week or 2, and then, just like chickenpox, you are immune to infection again.
This mind controlling you are talking about only occurs in rats. It is designed to control rats, not humans.
This would be the equivalent of saying that a motor in a toy car could also work in a regular car. They are both motors, but the vehicles(hosts) operate completely differently.
The only ones who can get really sick from an infection are: people who have weakened immune systems (1-2 weeks of flu like symptoms then they are fine), rats, and fetuses. If a fetus does get infected, there is only 5% chance of it causing *any* damage to it. Only on rare occasions do these individuals need treatment.
Properly educate yourself on the subject instead of reading shock value headlines and headlines made by "facebook" blog journalists
Cats haven't changed much ever since they were kept as pets, they just think of humans as living things that make them have a good life (or not).
Some breeds of cat have floppy ears
Wouldn't it make sense that domesticated animals are the only ones who can "afford" to have those characteristics?
Maybe they don't need to have perfect hearing or to blend in with the environment because humans will provide them with food and safety
Yes, exactly. They can take a hit on hearing thanks to their association with humans. The question is - why these specific traits together, over and over?
You didn't see the video
Same with the shorter snouts because humans would feed them cooked or processed food.
Erzs F u smart
coincidentally the patterns of domesticated animals often result in a "tuxedo" look or a "tortoise" look and these patterns appeal to humans universally. It makes it so we find them much cuter and want to shelter them more than their wild counterparts.
If I may have someone's input; correct me if I'm wrong. Animals like "domestic" cats or huskies and other breeds might still have more Neuro crest cells than say... A golden retriever.
Cats still hunt, fight over territory and if maybe homekept cats were bred for many many generations of suppressing those activities you might get a result. (what are Scottish fold's temperament? )
Or such with dog breeds, many erect ear dogs still do duties of protection, herding(chasing prey to where master wants) or have more testosterone.
Maybe there is a connection?
Thankyou kindly if you gave me your time. I appreciate it.
(Thank you everyone!)
Lost Coyote From what I know, cats haven’t been domesticated as long as dogs have been so maybe that’s one explanation.
Lost Coyote Hmm, interesting. I don't really know any more than you do but, now that I think of it, your right. Many dogs that have the up-right ears (Like huskies, German Shepard's, and many sheep dogs) are hard working dogs. Perhaps they naturally are a bit more, not necessarily aggressive, but are just over all more capable of doing work.
Great question! There is some thought that working dogs involved in predator-like behavior (chasing after other animals) might retain more wolf-like traits - but I think more research needs to be done to bolster that hypothesis. As for cats - they have been domesticated a much shorter period of time, so it might make sense that they are less tame somehow - but again, I don't think this has been studied enough to say for sure.
Skunk Bear Thank you! I've learned so much from your channel and I enjoy thinking about the subjects that get brought up. Even if my hypothesis is incorrect I feel proud to have at least tried to connect a similarity.
Ember Jewels Thanks! Sorry I haven't replied sooner, never got notified.
Wow! I listened to an episode of RadioLab years back that talked about this phenomenon happening to domesticated foxes, but I never realized it happened in so many other animals.
What's the name of the episode?
ruclips.net/video/it-0fXtUrtI/видео.html
Sus Scrofa-Babi Hutan
I think my goldfish has floppy ears...
ohh.. that's why it's not a shark (sharks have very pointy ears)
*ears
surely those "bubble" goldfish are a result of selective breeding
Came For this
Horses and Cats still have upright ears.
though they also have insanely strong fight or flight reflexes. usually flight.
Ah, well wolves were used more in the primitive era, cats were the ones who were hunted, later on they changed due to adaption and evolution in the most part...but of course cats start to be appealing as pets.
The horses?...well i don't know why they are the same
Farbe Doroga cats didn't start to be appealing they forced their way into human lives by domesticating themselves
Actually, cats were domesticated because they hunted pests in human’s crops and grain stores. Humans (Especially the Egyptians) we’re fascinated by them and they eventually domesticated them. Soon people started to smuggle them out of Egypt for their incredible use and they eventually made their way all around the world. They are now the modern world’s most popular pet! Make sure you know the facts before you make a claim. No cat ‘forced’ their way into our lives. UwU Hopefully you understand how.
There are cats with floppy ears too
Another interesting observation is that the domestication syndrome also creates features that appear cute and friendly for humans.
I’m gonna tell this to my friend’s Jack Russell terrier the next time it latches on to my ankle.
Christ, I hope you're joking
I have a jack russell too!
They're gremlins.
Could another possible theory be that those animals with let's say patches on their fur would be less likely to survive in the wild as they are easier to spot, thus through natural selection die out whereas their counterparts living domestically are kept alive by humans and do not die spreading their genes? This would explain mutations such as floppy ears and color patches as both could harm an animals chances of survival by either decreasing their sense of hearing or camoflage respectively.
What in the world? When? Why? Where? Who's got the answers? SKUNK BEAR!
The thing about the examples of animals that kept upright ears is that these are animals that are more similar to their wild counterparts. Camelids and cats required far fewer changes to domesticated so they aren't as affected by Domestication Syndrome.
This channel doesn't get nearly enough views. Keep it up guys!
Oh. I see. Another great scientist with my name.
I swear. I'm bound for greatness.
There's also the German Emperor who's said to be an ineffective war-time leader and fled to exile in the Netherlands.
@@AshrafAnam *K A I S E R R E I C H*
Everyone called willhelm is insanely smart its a rule of the world
I also think these make a quite lovely traits, animals with fur patterns and floppy ears are just cute
"Dogs and Coyotes Have Big Upright Ears and Dogs Have Floppy Ears"
Lucario: Hold my Beer
They have floppy ears bc..
THEY CAN DANCE TO THE SONG DAMN MOMMY
Sofi the cat omggg YES!!!!
Vixaravia Productions LMAO
I recall reading a quote from an ancient herding manuscript that said herding dogs should be pale in color to make them easier to see in the dark and easier to distinguish from wild dogs and wolves. So the coloration of at least some dogs is quite intentional.
It's important to note that this is one approach to addressing the question of floppy ears. There are different ways of approaching the same question in biology (from Tinbergen's 1963 classic paper): mechanism, development, function, and evolution. Here, this partial explanation is focused on the mechanism that may be involved, but does not address the other levels of analysis. Darwin may have been concerned with one approach more than another.
Great point! When you read this book (darwin-online.org.uk/EditorialIntroductions/Freeman_VariationunderDomestication.html) Darwin's tentative answer to this question was definitely in the development area. He wondered if maybe the food given to domesticated species was causing the change.
It's hard to approach this puzzle from a functional perspective, because the changes are only adaptive in the sense that they were linked (in some unknown manner) to these animals teaming up with humans. Floppy ears in and of themselves do not confer greater survival, and the science to link this trait to docility did not yet exist.
This video's overview is definitely focused on the mechanism side - but I think the theory as put forward by the scientist here (www.genetics.org/content/197/3/795) also touches on the evolution approach.
Thank you for the rapid reply, acknowledging the distinction of approaching a biological question from different levels of analysis. I appreciate receiving the links. It sounds to me like Darwin was also concerned with a possible mechanism, with the idea that how one is fed could affect the floppy-ear trait. If the trait changed as an individual developed, that would more appropriately fall under a "development" approach/level of analysis. Tinbergen's main message was that any question in behavior (and biology) is better (more completely) understood when addressing more than one level of analysis. Ideally, a question should be approached with evolution, function, development, and mechanism in mind.
www.thoughtfill.com/docs/aimsmethods.pdf
Barrett Klein I see I mixed up what Tinbergen's development category was all about (that exists hazily in my school memories) - I misremembered that it dealt with the environment's impact on an individual development - not the change traits over different periods of an individual's life. As you say, Darwin's concern was also about a mechanism.
I appreciate your scientific outreach efforts and your openness to discuss them! If you desire a reference for insect behavior, sleep behavior, etc., feel free to contact me. barrett[at]pupating.org or bklein[at]uwlax.edu
Thanks Barrett - I'll keep your contact info handy!
Skunk Bear's back hurrah hurrah!!! Please post more videos guys! I want everyone to know about your channel!!!
This channel is so fucking good
Animations on point 👌
I actually did a project for school on domestication of wolves/dogs and this helped me a lot thank you!!
wow the guy they got to narrate really looks like the cartoon narrator
+Sigurone what if I told you ... the narrator was also the animator?
What... he can narrate, sing AND draw!? Is there such a thing as too much talent?
I think it was a joke, Skunky :)
Human had also been receiving “Domestication Syndrome” for over several millenniums...thus, losing the hair and tail 😂
This is the first episode I've seen from your channel and you now have a new subscriber.
I was always curious my female Jack Russell Terrier had floppy ears and would go up and down. Thanks for this amazing video, Skunk Bear.
I’m so glad that there’s another video!
Interesting video. But does anyone know why dogs sniff each others tails? I do. You see... a long time ago, when only dogs inhabited the Earth, they were smarter and more social. And in their society, when you went to a party, it was considered good manners to take your tail off and hang it by the door upon arrival. Well... at a large gathering of dogs, the house caught on fire, and as they ran to safety everyone just grabbed any tail they could on the way out. And ever since then, when two dogs meet, they sniff to see if it is their tail !
That's really cute!
Cry Havoc.......what????
gonna tell this to my son when i have one :p
My aunt told that they sniff each others tails to check if they washed they're *butt* properly 😂😂
Cry Havoc they sniff their butts not their tails... :/
3:15
The answer is that cats aren’t domestic. They are tiny tigers that live in our houses.
Skunk Bear, I love your channel.
Did you know that in the 20th century they have tried to breed tame silver foxes in the Soviet Union in order to be able to handle them easier in farms? After a few generations the foxes became as friendly as dogs. But alas - they also developed floppy ears and splotches on their furs, which wasn't desirable. As far as I know this experiment hasn't been continued. But it demonstrated very well the workings of the so called domestication gene.
Wolves probably turned themselves into dogs thousands of years ago, when some of them became so called "camp wolves" who hung around human camps in order to profit from discarded food scraps. Humans tolerated this because the camp wolves were practical garbage removers and also useful guardians because of their sharply developed audio and olfactory senses. Those who were friendlier towards humans and could read the human body language better than other camp wolves, scored more food and attention and had therefore distinct survival advantages. And eventually some of their offsprings may have developed floppy ears and colorful furs :) Humans only started to breed different kinds of dogs after the dogs had domesticated themselves to a certain degree.
There's a well received new theory that the relationship between humans and dogs started much earlier than originally thought, and that dogs were one of the valuable advantages early humans had over their Neanderthal cousins, who had no dogs. Dogs served as guardians, hunting aids, transport and burden animals, and they defended humans. While this might not have killed off the Neanderthals, it might've been a distinct advantage of humans to have dogs.
Thank you for including female scientists in your video, as a female scientist I find it so rare when videos, TV Shows, films, and comics do this. Really appreciated!
yes! And not only is it informative... but there's also a Sikh turbaned man in the video!
You really must not have seen very many recent shows or films then. Is it uncommon? Kinda, but a rare occurrence it is not.
Just the first I've seen in an animated video. Diversity and inclusivity are good - never said it was rare.
Female scientists should experiment in the kitchen to make the best sandwich ever
@@AshrafAnam You're not funny.
i thought it was because the floppy ears trapped scent molecules in the air and kept it near their noses like with hounds
Another interesting tidbit that adds to this is how some Russian scientists are breeding of foxes to make them more domesticated and in the process the Foxes are gaining dog-like traits. Like the floppy ears and spotted coats.
My dog has really weird ears. Her ears point to the side, and go horizontal, then they kinda snap half way and go downwards a little bit, then the last little bit of her ears point downwards. She was born like that... Her ears go off to the side and snap into different angles, instead of just being floppy or being pointed.
floppy cause they good boy
i knew my pup was wild af
upright ears
shoulda watched this first
Humans: [Breed floppiness into dogs’ ears]
Also humans: “Hey Doberman puppy, come here!”
Darwin: Publishs his book
Wilhelm His: Discoveres neural crest cells
Darwin: Aw sh*t here we go again
My dog doesn't have floppy ears
Fox Queen LPS not ALL dogs have floppy ears
Fox Queen LPS not all dogs have floppy ears idiot
In the video they said that scientists haven’t got enough information about domestic animals with Pointy ears which includes dogs like huskys or German shepherd any dog breed with pointy ears and cats 🐈🐺
ThunderTheTherian TTT, really -_-
He specifically said in the video that decades (I think) of breeding have lead to the floppy ears, among other factors, being either reversed or extenuated.
What about the german shepherd?
German Shepherds were bred for shepherding and guarding, so their adrenaline levels were purposely made to be higher to carry out their jobs. Whether your German Shepherd has a job or not, it will still have pointy ears, because it takes generations for changes like floppy ears to happen.
Mammals specifically.
Good video.
This is such a well made video.
My dog has 1 floppy ear and 1 pointy ear
LPS Zoe Vail Awe cute
My dog used to as a puppy.
What about huskies?
My mom grabbed a coyote mix pup off the reservation, super nice but the bark can make your ear ring
The question is
WHY IS YOUR DOG PURPLE???
The Scottish fold have floppy ears, he's a cat.
Daria Lomurno Yup they do
Thank you for including scientists of color in this video :-)
And if they hadn't?
Nick C hi
What if I said "thanks for including white scientists."
Does it really matter what color the scientist is as long as they contribute?
L Corner Yes, it does. Representation matters, more than you can imagine.
Why is it that Darwin always looks grumpy in all the pictures he’s in?
this was perfectly illustrated.
I guess u could call this an animated tail
Kill me
How do dogs has floppy ears
Me: floppy ears meme plays in my mind
I believe it's quite simple. The domestic animals with more wild charateristics, especially in the ears, have one of two things going on. Either the neural crest cells didn't have much of an effect on cartilage to begin with and it's something else or the animal is just naturally deficient on these cells as in they don't need as much of a fight/flight responce. Both the cats and the llamas still display color features that their wild ancestors didn't have, but have the straight ears so they would both be subject to the first idea. This doesn't explain how there are cats like the Scottish Fold has, well, folded ears. The camel is most likely the latter, having few things to worry about in its enviorment.
*side note, what about rodents? Domestic mice, other than color, are very different physically from their wild ancestors, as are rats and guinea pigs. The pigs are subject to ear floppiness while the other two aren't, however the other two are very skittish in the wild.
Caitlyn Joys
Scottish Folds was a gene mutation humans liked, so they kept breeding them
.....ive never thought of this....
Woah. Never realised that there was a reason
What about dogs that don’t have floppy ears like huskies, malamutes, Samoyed, germanshepards, some dobermans and French bulldogs? Oh and like dogs with longer snouts ?
So i guess this theory means that we'll get Lions 🦁 and Tigers 🐯 and Bears 🐻 domesticated soon too for household pets. 🙌
I wasn’t expecting the guy to come out of nowhere after the fully animated video
My dog almost killed a coyote once. She tried to drown it like a crocodile would. My dad had to shoot the coyote. My dog is a English mastiff Rottweiler mix. Her fur is a middle color brown and darkens on her tail. She is friendly to people she knows but can get protective near strangers.
The boss when you fight him: Dangerous wolf
The boss when you unlock him: Tiny pug
I just subbed . The animations and the whole video is short but well made and detalied.
I feel like the reason why some animals have pointed ears may be because of what they were bred to do kinda?
Like, cats are still hunters and such so they may have more neural crest cells. Camels and such tend to live out in the desert, meaning that they'd still probably have more neural crest cells.
I'm not a scientist so this is literally just a guess lmao
Pyrrcrow
Yes, exactly.
You see today those German Shepherds and Huskies with those wolflike traits because they are used for jobs. Cats weren't really actually domesticated, they stuck around for the rats and mice and then people started breeding them. Cats still do as they want and can easily start turning against you and attacking
Here is a fun fact with domestication(or the reversal with military dogs), my mom is working for the Swedish military with training their GSD's. The military started around WW2 with select breeding GSD's to be more sturdy, alert and with less medical faults(like hips).
They are not a pure breed like the ones with sloping backs, these are crossbreed with wolf dog/wolf, and I've seen 20 years of progress with these(this has been going on for many more years than that)
my mom is taking care of one of the "problem dogs" and her physical traits are pretty cool. the nose is long and the head is pretty narrow, the ears are almost always upright and "sharp". the fur is very coarse and the eyes are not brown as they used to, grey-ish green like a wolf. They are also very harsh looking bordering on scary sometimes, the look is dead cold.
The military breeding program decided not to continue with that specific line since they were very reserved and can be hostile, very territorial and care deeply about their pack(human and other animals)
And it's very hard to train them since they are very stubborn, our dog even has issues with doing her needs inside the house even now when grown up. Not only that but the energy levels are on the extreme and zooms around a lot when inside because of anxiety.
They are not un-domesticated, but their wild side is more prominent.
If I domesticated bears till they were "Pet worthy" Will they have spots .. I want spots
My theory is that as they had less need for they senses to be sharp they kept decreasing, and not to mention how they keep their ears back when they are with their owners, so that could also have something to do with it after so many generations.
for pet foxes it happened very fast tho. Literally in few generations of their domestication experiment
Hmm, so floppy ears because they don't need to be so alert, shorter snouts because they don't need to rely on their sense of smell so much for hunting, and patchy colors because they don't need to blend into their environments as much?
I love Skunk Bear....
This happened with humans too? with the creation of civilization and the end of wildlife i guess we could find a reduction of the neural crest cells. There is some research of this?
You’d think scientists would have this more nailed down by now.
Animation quality is really good,keep it up bro. Subscribed
This is so well made! Keep up the good work, you deserve way more views!!
There are a lot of dog breeds where the ears are normally upright and astute, but then we purposely pin or glue them down to fuck up development and make them all floppy too.
Well... using my common sense I’d assume that it’s due to survival. Blah darker solid coloring to blend into its surroundings, straight up ears for being able to hear better, etc.
Hannah Stahl
Yep
Well i know for a fact cats are still basically feral on many accounts so that may be it. That is why some people dont like cats, they are not tecnically domesticated, or molded by humans in their behaviour, but ours to theirs.
So will foxes get floppy rats? I heard people are breeding friendly foxes to domesticate them
My dog doesn’t have floppy ears, I always knew my dog was a wolf.
Could this be why Whales kept in captivity also have a floppy top fin? And if a domesticated animal went back to the wild would their ears go back up or only over a long period of time/breading?
Fiona Walker
I think maybe not with the last question, the domestic animal would still be domestic and have those domestication features, with the floppy ears, shorter snout and patterned fur, so it wouldn't be that good at wild survival, and when gives birth, the babies would still have those parent features if its purebred, so it still wouldn't be as good at survival. If they were all purebred then I would probably say they would all stay the same, but if it got crossbred, a wolfdog, then it might make a new breed/have its ears up. It still might not though, because its still got that domestic dog in it.
The Soviet experiments with silver foxes kind of confirmed that. By selectively breeding foxes that had less aggressive tendencies, scientists bred a more docile strain of silver fox that also incidentally developed floppier ears and patterned costs.
I think floppy ears just naturally show less aggression making an animal more likely to be trusted as it looks less intimidating. Not to mention, it would allow humans to think of them as cuter, which would increase their chances of reproduction.
The saudi araibian chillin with da fish doe
The floppy ear genome could be dependent on the animals dependency of the owned. A dog is more dependant than a cat. Cats are always free spirits and do what ever they want unlike dogs. A dog will stop doing something if you tell it not to. A cat will stop doing it only if it feels like it. As well as that domestic cats have evolved to have ears different from wild cats. When a cat is wild its ears are very pointy with long hairs shaping the sharpest part of the ears. When a cat is a domestic breed the ears are rounder and sometimes balder. If somebody is up for researching this, that would be awesome!
Mihail-Bogdan Yanov
Cats like lions and tigers have those rounder ears too.
Nice to see some wholesome youtube content.
So cool! I love investigations into the obscure but interesting areas of science! Very cool presentation format too, keep it up!
And this is why Akitas are pure.
One theroy for cats can be that they domesticated themselves when humans had the agricultural revolution and rodents would appear attracting cats which then just developed a neutral relationship with humans, they are still on hunt mode
this is so helpful :D
I have two dogs. One, when she was a pup she had floppy ears but as she grew older they stood upright. My other dog, the floppiest floppers you will ever see.
You can probably learn more in one of these videos than in an entire year of school!!
pointy ear, longer face, natural ability to use magic?
i think elves are just wild humans.
I figured it probably would make sense that having less acute hearing would also mean having fewer stimuli which might cause the type of outbursts domestication bred out of animals. Though that still doesn't answer why this didn't apply to cats (besides Scottish folds, I guess). And, of course, smaller snouts mean it's a bit harder to chomp on people, which also fits domestication. Though considering this is also the case with really recent domesticated animals like the silver fox, it stands to reason there's a direct relation as well.
Cats want to live with humans for what we can give them, not because they're inherently codependent, and if they were larger they would most likely eat you.
I wouldn't class a cat with upright ears as domesticated-I'd class them as an ally of necessity that has been bred for some hair colors humans find pleasing.
Notably, many white cats are albino or deaf, but humans find light patches pleasing and breed for them anyway.
Domesticated dogs have these colors naturally, without any harmful side effects, because dogs are domesticated animals, and cats just think they're the boss.
You couldn't explain it well,
My Opinion is as following,
In wilderness animals have to be alert at all times to be safe, they use thier eyes ears and nose all the time to locate predators and fend off attackers or to find the preys. But in case of domesticated ones, they just don't really do that much, although domesticated dogs do watch for its owners security but its not as pressurizing as in wild(its life vs death in wild)
so if something isn't used much it usually disappears just like our body hair did.
This makes thier teeth, ear and nose with less capability(although still a lot higher than humans) than thier wild counterparts.
Great video, simple to understand and reeeally interesting. Thanks a lot!
Title should of been called An animated tail 😂
The breeding of cats has kept the wilder side of their nature because they were primarily used for small pest control. Perhaps as purple use them more for pet like purposes, they will develops know of those characteristics. Imagine that, a floppy eared cat!
Sara S
If you want to see a floppy eared cat, search Scottish Fold.
But they don't have floppy ears because of taming, it was a gene mutation
oh my dog has straight up right ears and a long snout XD but this is really good information to know cause my other dog has a short snout, and floppy ears. *claps loudly* GOOD JOB YA GOT THE ANSWER WOOOO!
Does this have anything to do with orcas floppy fins in captivity?
The connection between the domestic behavior of the parent animal and how that influences neuro crest cell expression could use some clarification.
this is so good.