The Truth About Dog Years (Your Pupper Is Older Than You Think!)
Вставка
- Опубліковано 1 гру 2024
- You might have heard that one year in a dog’s life is equivalent to seven in a human’s. But it turns out that the real ratio is both higher AND lower-depending on your dog’s current age.
Go to Brilliant.org/S... to try their Math History course. The first 200 subscribers get 20% off an annual Premium subscription.
Hosted by: Hank Green
SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at www.scishowtang...
----------
Support SciShow by becoming a patron on Patreon: / scishow
----------
Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever:
Bd_Tmprd, Harrison Mills, Jeffrey Mckishen, James Knight, Christoph Schwanke, Jacob, Matt Curls, Sam Buck, Christopher R Boucher, Eric Jensen, Lehel Kovacs, Adam Brainard, Greg, Ash, Sam Lutfi, Piya Shedden, Scott Satovsky Jr, Charles Southerland, charles george, Alex Hackman, Chris Peters, Kevin Bealer
----------
Looking for SciShow elsewhere on the internet?
Facebook: / scishow
Twitter: / scishow
Tumblr: / scishow
Instagram: / thescishow
----------
Sources:
doi.org/10.426...
doi.org/10.101...
pubmed.ncbi.nl...
pubmed.ncbi.nl...
Image Sources:
www.istockphot...
www.istockphot...
www.istockphot...
www.istockphot...
www.istockphot...
www.istockphot...
www.istockphot...
Hi everyone! It’s been pointed out that the link for our second source in the description was broken-we’ve fixed it now, so it should go to the cited article. Thanks so much for alerting us, and happy reading!
:)
My chihuahua is 18 years old thats why I've always taken then the whole 1 year is 7 for dogs as a myth. No way shes 126
Wow 126 yrs!
and giant dogs live 7-9 years
A little bit man, that dogs been around for near decades
Yeah it’s more accurate for bigger dogs that don’t typically live past 15 or so. Tiny dogs can live up to like 20 years and it doesn’t work as well
@@alexreid1173 -Works that way with humans if you think about it. That's why you see 90-to 105 year old., little old ladies and men....not so many basketball player sized, sumo wrestlers.
Hank: "researchers will need to examine more dogs"
researchers: "Awww yeah!"
Last month I took my almost 12 year old dog to his yearly exam. The vet explained this same thing to me. They age very fast in diet year, slower in middle age, and then again rapidly toward the end. So far, my dog hasn’t began that rapid aging process in the last year or two. I hope he gives me another good two years!! I can’t imagine life without him. 🐶
Is your pup still around?
@@EsotericSyncretism no:(
6 months later he was diagnosed with Bone Cancer. Just shy of his 13th birthday, we decided to end his suffering. The pain became unbearable for him. I will never be the same. I miss him so much.
@@hedy_7084 i'm sorry for your loss. my dog just passed away at that same exact age. when it happens it happens fast. they're such amazing creatures, it is definitely not fair
@@hedy_7084damn dude it'll be okay
@hedy_7084 Awww. That’s so sad. I hope you’re doing okay. Take care friend 😊😊😊.
Sure, but how can we make it hurt less when they die
we should castrate all dogs so no one can have a dog anymore and cry when they die.
Eduardo Alves stupid idea
Be a cat person
For you or for them?
@@mm62330 great question, i automatically assumed "for them"
So my 5.5 year old spaniel mutt is biologically older than me. Why am I the one cleaning up after her and buying her toys then?
Because you're the one who purchased the dog thinking it would just lie there like a log. Welcome to reality. Don't have kids if taking care of a dog is too stressful for you.
Fallout you sound like you’re projecting onto Mage that you’re bitter and angry about owning and caring for a pet and, or a child. I feel bad for you.
@@NukelearFallout Wow, someone can't take a joke.
@@Restilia_ch Obviously you're the one who agreed to take care of your dog. Your dog isn't here to just do your bidding.
What I'm saying is put here to educate those who think owning a dog is nothing but fun and games. It's not easy to care for any animal, especially not as a kid. You're allowed to make jokes, but I'm not allowed to provide facts for those who might be interested in getting a puppy companion -- and have no idea the hardship they'll have to put in to train, and care for your friend, or "Pet".
It's never too late to train, though! For anyone reading this: I know that dog training can be difficult sometimes, but you're doing great. Keep up the good work, and your dog (and your own sanity) will thank you for it! ❤️💕
normal people: I'm thirty years old
me,an intellectual: I'm one dog year old
You know... I like this. I just turned one dog year old 4 days ago.
IceMetalPunk I did last month
Nah u're just that one weird guy
Dead me me me me
Comparing dog years to Human years are just to help us cope with their upcoming death. It ain't fun when you get attached to your little puppy like its your kid and it dies at 13. Its easier if you think, Oh gee, my dog was 91 in dog years, it was time for her to go.
In reality we can't compare the aging of other animals to our own.
But with the current model, it's saying most dogs die in their late 40s early 50s. Those are rookie numbers; we've got to pump those up.
Veterinarians do use dog years to make medical decisions though.
@@Candesce yea but like they said it still ain't right. The reality im talking about is that human child take sometimes over a year to be able to walk and they don't become pros at it until much later while most animals in nature take a few hours to a few month to walk around. They don't have our luxery and brains to protect their kids that long. In nature things happen much quicker. The only viable comparison is knowing when the child is hitting puberty and when its mature
@@peter4210: "knowing when the child is hitting puberty and when its mature"
Did someone say "Harkness Test"?
Science: justifying homo sapian bias thru mental gymnastics since 300,000 BCE
The equation I have is: "Human" Age = 16 * ln(DogAge) + 31 [NB: ln is natural log]. Note this is for an average lifespan dog of about 12 years. So, a 2 year old dog has an equivalent human age of 42, a 4 1/2 year old dog equivalent is equivalently 55, a 10 year old dog about 68 equivalent. Of course, dogs such as Irish Wolfhounds (6-10 yrs) have far shorter life spans than Jack Russells (13-16yrs) so this eqn can be adjusted accordingly.
I understand the equation but could you explain how you reached it? My math is a bit rusty 😆
Where exactly did this equation come from? Data presented in this video?
Oh god. My dog is 4 1/2 and can run circles around me.
Following this my 8 year old middle sized dog would be 64 years old. I'm not sure if that's accurate. She's quite calm, yes, but she's always been on the calmer side.
Makes more sense than the math done in the video but still it's somehow wrong when I look at my 14 yo golden retriever and my 90 years old mother- they share the same health problems but also, luckily, the same joy of life 😄
Last week I was looking under the couch for the Remote control and found hundreds of dog toys, come to find out my dog has been embezzling from me for the last five years. He was taking my debit card at night and was ordering toys from Amazon, I don’t know if I should press charges or not, he’s such a good dog.
We've come up with a pretty nifty tool to make this calculation quick and simple!
I guess this means we should love our dogs as much as possible
All I know is our mixed breed chihuahua we got him as a 4 month old puppy, when my kid was 8. He is still alive and as energetic as ever; my kid 21now.
Fun fact, humans age at the rate of 5 years to each Hank-year.
Naw, you confused that with Paul-Rudd-years. 😉
1 Human Year = 7 Dog Years and it is true, at least in the cartoon world Martha Speaks I’m looking at you. Nicole: “Sorry guys but I have to stay here for 3 months.” Martha: “That’s almost 2 dog years.” 3 Human Months = 21 Dog Months confirmed.
I have a suggestion for a video!
Why can we feel uncomfortably hot and sweaty in 85 degree weather, but when we take a 100 degree+ shower, it doesn’t feel to hot?
Off hand I'd say because the water is doing the job your sweat does.
Bruh y'all showering in boiling water?
@@siyacer that would be 100F
@@kasnitch you mean 100°c?
So that means my Labrador is in her late 40s.
She’s 8 and about to turn 9
You should get off UA-cam and play with more Lego kid
Actually she'd be around 64 and about to turn 66. The aging function is not really linear.
Woah that crazier than I thought. Thank god the aging slows down because I want to keep my doggie alive & well with me as long as I can. Thanks 👍
Being the overly curious child that I am, the next question I have is why? What caused dogs or cats to age in this way, especially if it would be what we would consider a non-linear form of aging? Age research is one of the fringe research fields in medicine/biology right now as many people are trying to unlock immortality, so learning how aging works in other animals when they age at different rates during their lives could be really interesting.
I hope we can evolve dogs to live for more years
No wonder my 2 year old dog swears like a sailor
lmao
I can't believe you didn't include the figures from the paper that compare an aging Labrador to an aging Bill Murray.
Love your show and your shirt. Pretty cool. Thanks again for your show. You learn something new every day.
My question is... why is there so much emphasis on dog years but not on cat years? 🤨
Cat.
Well there's just more dog people than cat people
Considering the worlds oldest cat was 38 and the oldest dog was 29, I think we need answers!
@@MrBubmer Or dog people are just a lot louder about being dog people than cat people are about liking cats...
@@MrBubmer My question is, why are there cat people?
I watched this cuz tho I don’t have a dog, i have two 16 year old cats, tho one passed away just last night. Its been a stressful and traumatizing 21 hours. They are supposed to be in their 80’s now. Im gonna miss my sweet baby boy.
Was wondering when they were going to talk about dog ears... just saw it’s years and the vids is almost done
This made me exhale sharply through my nose
Glad to see the shirt back!
She was 18 in dog years why you are you guys arresting me!
My Pomeranian lived to a ripe old 18. She has been with me since I was a child. It was like losing a sister, even though I'm an only child. She was our family and we can never forget how much happiness (sometimes anger and frustration haha) she brought to us. Rip Chong
My vet has a table with dog sizes and breeds and their ages in human and dog years. Smaller dogs get older than bigger dogs.
i wish you showed some table or graph showing how they age. missing it is a big problem making it intuitive at all
I saw the paper on this a little after it came out, fun to see that you did a video on it
Ok , I have been breeding dogs for 14+ years , and I have noticed for the first 2 years at least every month of a puppy is like a year of a human. A puppy cut their teeth the first month like a child's first year and when a puppies start losing their puppy teeth around 5,6 and 7 months like when children start losing their teeth around 5,6 and 7 years of age , and when a puppy be going thru puberty around the same time a human child does , a male dog be able to get a female dog pregnant at 12 months like a 12 year old child in a female dog be able to get pregnant between 9 and 12 months like a female human can between 9 and 12 years. And that what I have noticed over my past 14+ years of breeding dogs.
So... They're Saiyans? Gotcha. Although, I wouldn't care how old my 10 year old Goldendoodle is. She will always be my baby puppy.
@@mallgrabnation3049 -I think they're made by Frito-Lay.
@@mallgrabnation3049 goldendoodle is what you get when some tiny space napoleon decides to kill the labradoodle's best friend and push him into a legendary form.
@@mallgrabnation3049 golden retriever + poodle
@@TheGoldenDunsparce Then is should be Golden Roodle, or just Golden Poodle. The 'd' in Labradoodle comes from the Labrador, not the Poodle.
@@Just_A_Dude Okay, but a goldendoodle is still a golden retriever poodle mix either way lol Like, that's just what they're called...
-Not that I would know anything about that! .............Hank holding his manly tears..... I felt that....
I’ve always used the 1st year = 15 and after that each year is 5 for my cats and it works a loooot for the way they act. My kittens are always crazy stupid kids the first year and then they get more mature. Some stay wild a few years (so until they are “30-35” which fits lots of humans) and some get calm directly at “15” or “20”. At around “50” they get really smooth and have their classic spots to sleep and their way of acting really defined and not prompt to change.
I'd love to see SciShow do an episode on how dogs manage to vary so much in size, shape and appearance.
@laser325 I'm talking about why they can vary to such a huge degree when most species have nowhere near the same variations in size, colour, coat, temperament, etc. even with selective breeding over hundreds of generations.
Fun fact
Planets have sounds. Jupiter sounds a bit like being underwater, Neptune sounds like ocean waves, and Saturn sounds like the background of a horror movie.
-The Shades
My boy is 9 but the vet said he is as healthy as a much younger dog. Care has a lot to do with aging.
I just lost my pupper. I raised her from a puppy and gave her plenty of love, exercise, and a healthy diet. When she hit 12-years old she quickly went down hill and I don’t know what else I could have done to prevent it. It was inevitable and yet so tragic and shocking. Get all the love in while you can and know at some point you can’t fight genetics.
i have never been this quick on a video. keep up the good work
This totally makes sense. My three-year-old Yorkshire terrier is best described as a grumpy old man. My children referred to him as a boomer.
The question we all want answered is
How do we make dogs live as long as people, Hank?
Easier solution would be to make people live as long as dogs.
@@Wrathful_Scythe easier yes, better ooof
"I love this old dog! He's fifteen, that's a 105 to you and me. He's an Alpo dog." - Lorne Greene (1976)
The timing is so right! Im about to get a new dog. Woof woof woof ❤
I'd be curious if there's an equation that would let you graph out the aging curve.
Yep. There are charts for it.
it can be described by a logarithmic growth curve
physDOTorg/news/2020-07-dog-human-years-scientists-method.html
Yep, there it is: Y=16ln(X)+31
As I listen to Rush 's song "Dog Years" from 1996 album Test For Echo!!
My lucky is a 15 year old jack Russell, we regularly walk two miles a day. Today he stopped and looked at me and couldn’t take another step. I had to carry him home.
I came for the beagle in the thumbnail.
*Weird Fact* :
It can take a photon 40,000 years to travel from the core of the sun to the surface, but only 8 minutes to travel the rest of the way to earth 😳
(My channel is full of such interesting stuff 😉)
Love the shirt Hank!!!
There is another positive attribute to all of this. Chihuahuas and other little dogs tend to live to be older than bigger dogs. And indoor cats tend to live to be older than dogs a lot of the time if they're well taken care of, but now that we know this about dogs, that means your cat's favorite cat toy will live much longer if vets tailor the care to the type of dog they are based on their aging.
It's the same with cats, and a lot of animals, they age logarithmically. That seven-to-one nonsense (especially when blindly copied to cats as if cats and dogs are anything alike 🙄) is, well, nonsense. Proper charts are logarithmic and do exist, so look up one of those for a more realistic approximation of your pet's age.
I wonder why exactly we break that norm.
@@Starfloofle Because we're the ones who created that norm in the first place?
Dude...love the shirt!
Thank you for this information, I trust canines ability to learn so much in the first year, that it’s greatly overlooked because of the “ cuteness” factor. BUT I’m asking if you can do a segment on dog food, focusing on mainstream, advertised, promoted to sell DOG FOOD. I have tried to look up nutritional guidelines and calories for the average mutt ( great respect) ,rescued, normal household dogs. I’m confused. We are looking for cost effective, nutritious, no scary stuff inside, food for dogs Please help narrow down so much of misinformation 🐾🐕🐾🐾🐾 MAHALO ( ps long time subscriber and science lover).
@John Daniels Yup, can lead to diet-linked dilated cardiomyopathy (DCM).
My last pup died at 17.5 years. She was a great old gal.
I bet she was ugly and expensive at that age
💕💕
@@shanemoran6617 I bet _you_ were ugly and expensive at that age.
@@shanemoran6617 Who hurt you?
That was an attempt at dark comedy
Can't wait for the cat version of this study :D Currently they say the first 2 years equal to 24 years (12 years per year) and then you add 4 years for each passing year.
I don't know about that 1 year to 30. Those are DNA markers we've noticed in humans, but dogs become fertile at 6 months and fully mature at 12 to 18 months. More like 12 year old teen and 18-21 year old adult in humans.
Hank rocking the "Beach Goth" shirt, fantastic
0:52 I had to click on this just to see Hank's little weird "joint" dance (when you hover over the thumbnail).
You guys should totally learn how to do smooth sponsorship transition the same way that TeirZoo does it. His transitions are beyond god-teir in how smooth they are.
Sometimes I actually felt like my puppy acts like a ten-year-old. He's 3 months old
Exactly! Dog age at astounding speed when young, a one month dog is definitely more intelligent than a one year human, mabye as smart as an 18 months approximately. And it is more dexterous too. It would be neat if it was exponentially linked too human age.
@@Sitwayen Ah. Intriguing!!
@@Sitwayen nope
@Dagwood Dogwood Awweee. Tell him I said hi. :,)
That's roughly 8.8 years old.
Love the shirt Hank
It's not that dogs age quickly at first, it's that humans age really slowly with our extended childhood
My doggie will always be a baby 😭 ❤️
Trust me, most veterinarians know how to interpret the dog’s age, even though it does really depent on the dog’s size and breed. But a more accurate comparison to human years would mostly make it easier to explain a dog’s age to it’s owner bc that’s where the trouble is at
Try mantids,they age super fast and they age by the season,spring and summer is youth,young adulthood is late summer early fall,and by November or so,they’re considered old.
People liked 101 Dalmatians, but personally I believe the spin off 2:14 is a much better film.
Nice shirt hank, i’m going to need to get me one just like it.
So what your saying is we should us this equation, dog age = 31/~642(127)÷3.21×(45-2)
The older cat that lives with us, was born in may 2008... 12 years + have pasted since he was born. How old is he "in human years" ? 120? or less?
This is how imagine chris hansen son looking like.
But instead of telling people to have a seat , he says "Why dont you grab a book . Right over there
😄😃😝😝
That’s hilarious
I have a question nobody pays attention to, not even dog lovers.
Namely, since it is 7 years of bad luck when you break a mirror, what happens if a dog breaks it? 7 years of bad luck would mean 49 years for dogs. Or is it only 1 year which would make it 7 expected unlucky years? What has the nature provided? And how the mirror knows who broke it, man or a dog?
Could you do one on cat kidneys. We have discovered that cats kidneys wear out with age and we'd like to know more. Our cuppy passed just months after kootie and I want to know if there is anything I could have done to prevent it.
Kootie was 19 yrs and cuppy was 17.5 yrs
Truth: Your cats both lived beyond the average lifespan of domestic cats. Be at peace with it. The average lifespan of a domestic cat is 16 years. If it wasn't their kidneys, it was going to be something else. Every living thing has a time to die.
@@danielduncan6806 true, but anything i can do to keep our other 2- mr princess and miss dash healthy until the time comes is a bonus for them
Hi I just found out about exoelectrogenic bacteria and am hoping you could do an episode on them!
Great shirt
Hank is 💯💯💯
Surely it’s incredibly hard to work out considering all dog breeds are susceptible to certain ailments that might suggest ageing when really it’s just their breed. For example, german shepherds often have hip problems but they don’t always appear from ageing.
For purebreds a lot of their issues are due to the inbreeding necessary to maintain the breed. It's why mutts usually have a lot less chronic health issues.
OtakuMage for example pugs
That thumbnail is adorable.
I always figured "Dogs develop faster than we do but then slow down when fully mature" was... like, obvious. That's kind of the Whole Deal with humans, we're really slow relatively speaker in terms of developing in childhood, compared to most other animals.
Hank you ae the best
This is super crazy! Would love a ep like this for cats if that research exists!
Nice shirt
Alright now we need a video about cat ages!
I noticed whenever my mom left, her chihuahua got so stressed that I think she greyed before her time.
But where did you get that shirt though!?!
Could you please fix the link to your primary source? I'd love to read about it but the link is broken (the rest of them work fine, though, it's just the one about methylation in dogs vs. humans)
Thanks so much for the alert! We've fixed the link in our description.
@@SciShow Great! Thanks
How could you scroll away with that photo
If if makes you feel any better you are older than you think. However many months it took for you to survive birth is 1 year for you. Ex. I was born in 9 months so every 9 months is a birthday for me. We should really go by days cause unless you die during the growing process you indeed was alive since conception and been aging ever since.
So my Tentie X Chihuahua is middle aged like me... Geez I just WISH I had his energy level!
We get attached to dogs, and they die...we get attached to new ones, and they die. This is just like what Wookiees have to go through with their pet humans.
At least the 7 year myth picked a number and stuck with it
When you share the link the title shortens to ...the truth about dog
Kyle Hill did this exact topic 2 months ago. Come on fellas- (and ladies)- keep it original!
she was 18 in dog years i swear!
(thats pretty old)
Hmm. The 1.6 year age-rate doesn't seem right for my aging spitz -- he's 15 human years old and obviously nearing the end of his lifespan. His vision has gone bad, he's mostly deaf, his fur is falling out, he's not moving super well, and if doggy dementia is a thing then I'd expect he's got some form of it. The 1.6 dog-to-human year ratio would suggest he's only the human equivalent of 52 (on par with my parents) but he's definitely showing many more signs of his age than they are. He definitely seems to be more the canine equivalent of my grandfather in his mid/late eighties.
Speaking of patterns, where can I find that shirt?
@laser325 No, love that shirt! But you should avoid buying it; it would look like crap on you.
Well then how about some _visualization?_ You know, some kind of _graph_ showing the human-to-dog relationship of aging? That would be *really* insightful.
The second DOI they provided has precisely that: doi.org/10.1016/j.cels.2020.06.006
The graphs are on figures 3B, 3C and 3D.
Do a video on the methylation cycle. Please. :)
Sweet fireworks shirt