This is more an explanation of why cold blood doesnt cause issues coming back into the body for recirculation, it doesnt show any specific adaptation for keeping feet from freezing that other animals just have as regular bloodflow than would develop frostbite
It's a poor diagram showing the heat exchange effect because it shows the heat increasing before reaching the vessels that are warming the blood, and the cooling taking place after after leaving the vessels that are cooling it.
It's a diagram that shows exactly how it works. Cold vessels quickly heat as they move towards the warm blood vessels (away from the cold extremities), and quickly cool as they move towards the cold blood vessels/extremities. It's only a "poor diagram" for people who lack basic thinking skills. This is exactly how heat exchange works. I'll simplify it for people who agree with this comment: Cold gets hot when near hot, hot gets cold when near hot - Heat exchange for complete morons
@@Godvivec Heat exchange takes place as it transfers from the source to the sink, not before. I am an engineer engaged in the design and manufacture of a wide range of heat exchangers for industry. Your comment about morons is rude and derogatory.
no, you are misunderstanding what is happening. warm blood from body goes to feet. blood looses heat to the environment as it passes through feet. cold blood exits feet, and now the heat exchange takes place. the returning vein is wrapped around the supply artery and the return blood is warmed faster or more efficiently.
Huh…I always assumed that their feet is covered in layers upon LAYERS of thick skin that acts like a pair of winter boots to keep them warm, but I never thought about the logistics of what goes on internally that’s mainly what keeps their feet warm! It’s like the coolant system in refrigerators!
Oh my gosh! This video title just sparked a memory of my favourite book as a kid. It was also called 'Why don't penguin's feet freeze' and it was full of fun facts. I remember there was a flip book animation of a penguin fishing with a fishing rod in the bottom corner.
feathers only work with air pockets. Feathers would on one hand simple not work, becuse everytime you step on them you would eliminate the air pockets on the other hand, you would push water into them, making them do the exact opposite of what you wanted them to do. Also the mechanical stress is probably the biggest reason in the first place. Friction would not allow them to grow there and stay long enough, probably the reason why no bird has feathers on the bottom side of it's feet. Feathers on top would help not much, since it's the large surface contact of the foot which is responsible for the big chunk of the heat loss.
I think the key thing is that they are designed to purposefully maintain a region of blood in their feet that is just barely above freezing. An isolated circuit that primarily interacts with the warmer blood of the upper body by indirect heat exchange. In human bodies, the only option is to directly send warm blood to the feet which rapidly loses our vital body heat, or to cut our losses and restrict blood flow to the area, causing the feet to freeze and die but preserving more vital tissues. Penguins have evolved a third option
Cold climate mammals have very similar systems to keep their lower legs, ears and tails from freezing. Humans with thousands of generations in cold climates tend to have a stocky build and be better at preserving heat than humans who've had thousands of generation of hot climates and tend to be lanky with more surface area to volume ratio. AFAIK, no humans are as well adapted to extreme climates as many other mammals that are more specialized to extreme climates.
For humans heat exchange are in opposite direction, humans has best heat exchange mechanism. For example humans can outrrun any faster animal in longer run only because animals just by running will heat up and exhaust from it. Humans can run very long as you get enough carbohydrades in process and water, but wont overrheat. Thats maybe we like to sit in hot sauna so much.
uh why ignore that their skin on their feet is also made to be outside similiar to how other mammals dont freeze either during winter? its extremely thick skin
I still don't get it. We have blood vessels in our feet too yet ours would freeze solid let alone be VERY painful in an instant on straight ice. I think they just don't have nerve endings in their feet.
@@rubiks6 Your "intelligent creator" must be a moron then because he put a recreational facility next to a waste disposal plant lmfao. And why do we lose even more fluids to diarrhea and vomiting when we're already dehydrated from being sick? Your "intelligent creator" should've let these ideas cook a bit longer lmfao A computer made of electro-chemical reactions that runs on fat? Psssh 😏
Well, I think we ought to fit each one with little woolly penguin gloves, just as a precaution, AND set up hot coffee stands all over Antarctica-with an easy self-service system.
Do penguins have no pain receptors in their feet? Standing on very cold surfaces is painful for us humans, and would likely still be so even if we weren’t subject to frostbite just due to how our nervous system is arranged.
But are their feet still cold even if they are not freezing? Like, I would still be pissed if my feet were just few degrees above zero even if they weren't frozen solid.
The science says that penquins evolved from flying birds into the now flightless birds. So I guess they adapted slowly over time to the cold on the ground for longer and longer periods of time??
The ancestors of penguins lived in the area of New Zealand and Antarctica back in the Cretaceous. Back then, Antarctica was connected to Australia and South America, and the climate was that of a rainforest. Eventually, Australia split off, with Antarctica finally being separated from South America around 30 million years ago, becoming fully isolated. During the neogene period (beginning 23 million years ago), the Antarctic ecosystem transitioned from a rainforest into a tundra, and eventually became too cold to even support that. So to answer your question, rather than the ancestors of penguins just arriving in the frozen Antarctic as we know it and just having to deal with the cold, they probably slowly adapted as the land they lived in became colder over millions of years
How did the first penguin not die if they don't have that fully functional system of exchange of cold and warm blood thru the flow of the blood vessels , further more they even grow in number even without those said necessities. If they can live without the said luxury, why the hell they need it now. Isn't ironic that it is clearly not evolution? 😂
What about unattractive people who can't find a partner? Men with small penis, women with small breasts, being rejected and dumped countless times. Is that for his glory too?
They "evolved to maintain a constant temperature." What? That means that before they 'evolved,' they couldn't keep their feet from freezing and would have died from frostbite and gone extinct. Give credit where it's due, to the Creator (and designer) of life.
i don't think this is a good scientific explanation, aren't humans and animals have the same biophysiology? poor explanation that i could of gotten a better answer from a kindergarten
"Penguins evolved was the first lie. Penguins were created. Stop marvelling at creation while denying its Creator. "...they exchanged the truth about God for a lie and worshiped and served the creature rather than the Creator, who is blessed forever! Amen." Romans 1:25
If you really want to play that game, the concept of a God is more of a theory than Evolution is. The only difference is Evolution is a well known, and heavily supported theory. I would love to see even a shred of evidence of his existence when even his son, who died for our sins, left no traces.
This is more an explanation of why cold blood doesnt cause issues coming back into the body for recirculation, it doesnt show any specific adaptation for keeping feet from freezing that other animals just have as regular bloodflow than would develop frostbite
He said around 0:36 that they can control the rate of blood flow to their feet, which helps keep them just above freezing
Penguins have Happy Feet-and some seriously clever ways to keep them toasty!
Haha I see what you did there
It's a poor diagram showing the heat exchange effect because it shows the heat increasing before reaching the vessels that are warming the blood, and the cooling taking place after after leaving the vessels that are cooling it.
It's a diagram that shows exactly how it works.
Cold vessels quickly heat as they move towards the warm blood vessels (away from the cold extremities), and quickly cool as they move towards the cold blood vessels/extremities. It's only a "poor diagram" for people who lack basic thinking skills. This is exactly how heat exchange works.
I'll simplify it for people who agree with this comment: Cold gets hot when near hot, hot gets cold when near hot - Heat exchange for complete morons
@@Godvivec Heat exchange takes place as it transfers from the source to the sink, not before. I am an engineer engaged in the design and manufacture of a wide range of heat exchangers for industry. Your comment about morons is rude and derogatory.
Thanks. I found it confusing, now I know why
no, you are misunderstanding what is happening.
warm blood from body goes to feet.
blood looses heat to the environment as it passes through feet.
cold blood exits feet, and now the heat exchange takes place. the returning vein is wrapped around the supply artery and the return blood is warmed faster or more efficiently.
@@theastuteangler But then the blood that goes into feet is colder isn't it?
Im going to give this video 100 likes, because you didnt take 25 minutes with 5 ad breaks to tell us why and kept it to a minute,
Huh…I always assumed that their feet is covered in layers upon LAYERS of thick skin that acts like a pair of winter boots to keep them warm, but I never thought about the logistics of what goes on internally that’s mainly what keeps their feet warm! It’s like the coolant system in refrigerators!
Or a heating system
Once again science solved one of the most pressing issues of humanity.
I'm deeply impressed ❤😅
Oh my gosh! This video title just sparked a memory of my favourite book as a kid. It was also called 'Why don't penguin's feet freeze' and it was full of fun facts. I remember there was a flip book animation of a penguin fishing with a fishing rod in the bottom corner.
We have a similar book! 📚 👉 www.nhmshop.co.uk/can-jellyfish-live-forever.html
It's available on amazon....
I remember this book! Loved it too
Different nerves , more advanced for colder temps , easy no video or explanation needed
My question is: wouldn't ir be better to cover the feet with feathers too?
feathers only work with air pockets. Feathers would on one hand simple not work, becuse everytime you step on them you would eliminate the air pockets on the other hand, you would push water into them, making them do the exact opposite of what you wanted them to do.
Also the mechanical stress is probably the biggest reason in the first place. Friction would not allow them to grow there and stay long enough, probably the reason why no bird has feathers on the bottom side of it's feet. Feathers on top would help not much, since it's the large surface contact of the foot which is responsible for the big chunk of the heat loss.
Pretty much what the ptarmigan has. Their feet are covered with downy feathers; just leaving the pads bare, like a dog's paw.
Great question and great comments here. Pretty cool.
Don't argue with nature it does the math around here lol
One word, infections.
That's a question I've never thought of
they drink a lot of alcohol for its antifreeze effect.
Thats a good question. Never tried it during the cold. However, I can last for hours on the hot cement road during summer time in Florida.
That doesn’t explain how they sleep. They can’t move their feet back-and-forth while they’re sleeping.
Plot twist: penguins are paid actors
Thought it would be more than just: blood. So what differs between them and humans? just high amount of bloodflow or?
I think the key thing is that they are designed to purposefully maintain a region of blood in their feet that is just barely above freezing. An isolated circuit that primarily interacts with the warmer blood of the upper body by indirect heat exchange. In human bodies, the only option is to directly send warm blood to the feet which rapidly loses our vital body heat, or to cut our losses and restrict blood flow to the area, causing the feet to freeze and die but preserving more vital tissues. Penguins have evolved a third option
@marlinbundo2409 ah ok, was confused by it and was assuming things as well. Thank you
Cold climate mammals have very similar systems to keep their lower legs, ears and tails from freezing. Humans with thousands of generations in cold climates tend to have a stocky build and be better at preserving heat than humans who've had thousands of generation of hot climates and tend to be lanky with more surface area to volume ratio. AFAIK, no humans are as well adapted to extreme climates as many other mammals that are more specialized to extreme climates.
For humans heat exchange are in opposite direction, humans has best heat exchange mechanism. For example humans can outrrun any faster animal in longer run only because animals just by running will heat up and exhaust from it. Humans can run very long as you get enough carbohydrades in process and water, but wont overrheat. Thats maybe we like to sit in hot sauna so much.
uh why ignore that their skin on their feet is also made to be outside similiar to how other mammals dont freeze either during winter? its extremely thick skin
so this must be why my feet are always so cold yet never actually freeze.
Because they wear sox to bed.
We had a Adelie penguin who would stand in our sledge while it was molting. I assumed it helped keep it's feet warm.
Subconsciously. I don't believe they think ' blood vessels enlarge or flow rate higher '.
Intelligent Design.
I still don't get it. We have blood vessels in our feet too yet ours would freeze solid let alone be VERY painful in an instant on straight ice. I think they just don't have nerve endings in their feet.
A generic comment made to count toward Channel participation by the algorithm
Well the algorithm boosted so I would see it and I don't know if I would say I appreciate it
Fun Fact: Arctic Foxes also have a similar adaptation!
and ur mom
They did not adapt. They were created that way by the intelligent Creator.
@@rubiks6 Your "intelligent creator" must be a moron then because he put a recreational facility next to a waste disposal plant lmfao. And why do we lose even more fluids to diarrhea and vomiting when we're already dehydrated from being sick? Your "intelligent creator" should've let these ideas cook a bit longer lmfao
A computer made of electro-chemical reactions that runs on fat? Psssh 😏
@@rubiks6 Ever hear of evolution ?
@@widowmacher - Ever heard of creation?
Well, I think we ought to fit each one with little woolly penguin gloves, just as a precaution, AND set up hot coffee stands all over Antarctica-with an easy self-service system.
dosent human blood circulate the same? any different?
They mix plenty of antifreeze in their Xmas booze
Does that mean all dinosaurs had that as well?
not necessarily
😣
That’s a good question something I really never thought about.
Do penguins have no pain receptors in their feet? Standing on very cold surfaces is painful for us humans, and would likely still be so even if we weren’t subject to frostbite just due to how our nervous system is arranged.
Ok. A quick explaination. I like it.😌
Subhanallah, nothing is created without purpose & function.
They got no nerves on the feet. Like steel toe boots 😅
But are their feet still cold even if they are not freezing? Like, I would still be pissed if my feet were just few degrees above zero even if they weren't frozen solid.
I didn't understand this at all
He's an evolutionist. Whenever there's a problem, just add a few million years.
@@majorlaff8682 i was talking about the physics but yeah that too i guess
There's a MUCH better explanation on the BBC TH-cam channel
@@BoltRM I'll look it up thanks
The real chicken of the sea
In between their feet , there is eggs ,with cold feets the chicks will hatch ... Interesting
Nifty. Thanks.
Wow, lizards do the same in hot deserts !
0:21 - What happened to their feet before 'they evolved to keep their feet warm'?
The science says that penquins evolved from flying birds into the now flightless birds. So I guess they adapted slowly over time to the cold on the ground for longer and longer periods of time??
@@metoo6599 ' So I guess ...'. Thank you for your honesty. It's all guesswork.
The ancestors of penguins lived in the area of New Zealand and Antarctica back in the Cretaceous. Back then, Antarctica was connected to Australia and South America, and the climate was that of a rainforest. Eventually, Australia split off, with Antarctica finally being separated from South America around 30 million years ago, becoming fully isolated. During the neogene period (beginning 23 million years ago), the Antarctic ecosystem transitioned from a rainforest into a tundra, and eventually became too cold to even support that. So to answer your question, rather than the ancestors of penguins just arriving in the frozen Antarctic as we know it and just having to deal with the cold, they probably slowly adapted as the land they lived in became colder over millions of years
@@stephenlawrence554 Nice story. Thank you, Stephen.Your first-hand, eye-witness account is fascinating.
@ not quite eye witness, more like leading theory
Always wondered about this. We used to have chickens, assume it's the same.
So the answer is nothing really that different from what any animal body does.
Yes, it's very different as the animation illustrates.
BRUH...I THOUGHT THEY JUST WORE GOD MADE SHOES.....
Do they born with a Built-in Geaser within their body?
Why didn't they just evolve shoes?
Automatic gain control
Yeah, Goddamit!! Why happy feet not chappy feet?!!
I wear socks.
wow ok, when an animal can control they blood vessel really shock me
Their feet are probably made of rubber 😅
From what I understand a penguins feet is very similar to a woman’s heart.
Simple
Because they got happy feet
I can do that with my 3rd leg.
They didn't evolve, they were "designed" that way.
God is capable of using evolution to create an unlimited variety of life forms that self-improve.
No need to limit God.
God doesn’t need to use the hypothesis of evolution. He spoke the universe into existence.
@@NomenClature-o8s Amen! The creator God made it that way.
@@chefmichaelt God _spoke_ evolution into existence, but you deny him?
Lmao I'm dyslexic. I read the title as "why don't penguins farts freeze?" And I was like, "what?"😂
Well farts from any living being will not freeze because farts are methane gas. It's also hard to catch a fart to test for frost .
And maybe a thick skin with a low heat transfer coefficient.
The crime. Cause I want my feet to identify as penguin feet but they still get cold and freeze? Why!?
He said because they wear snow boots shoes
Che carini😊😊😊
that explanation made no sense at all
" evolved " instead of created !!! yeah that tiny penguin brain calculated the ambient temperature and internal blood flow rate to save its feet ...
Lets just outfit all pequins with little warm booties!! 😍
Actually it's because penguins have mastered the Wim Hof method
RUBBER FEET !!
Fake. Penguins take regular warm foot baths to keep their feet warm
I respect the algorithm, but I respect the Natural History Museum more. #viewerengagement
We and the algorithm appreciate the support! 🐧
How did the first penguin not die if they don't have that fully functional system of exchange of cold and warm blood thru the flow of the blood vessels , further more they even grow in number even without those said necessities.
If they can live without the said luxury, why the hell they need it now.
Isn't ironic that it is clearly not evolution? 😂
Stop smiling when you talk.
Interesting
So, the Penguins 🐧 told you all this?🤨
beauty of Gods creation!
That is interesting
God created penguins feet for His Glory!
What about unattractive people who can't find a partner? Men with small penis, women with small breasts, being rejected and dumped countless times. Is that for his glory too?
But do we ever thought about that engineer who made that penguin that is one and only "Allah"
They're from the South pole thats why.🙄🤣
Cool
They "evolved to maintain a constant temperature." What? That means that before they 'evolved,' they couldn't keep their feet from freezing and would have died from frostbite and gone extinct. Give credit where it's due, to the Creator (and designer) of life.
Engineering at its finest
And poo, thry place it all over
Oh great
Για τον αλγόριθμο.
Look at the camera not the script.
i don't think this is a good scientific explanation, aren't humans and animals have the same biophysiology? poor explanation that i could of gotten a better answer from a kindergarten
سبحان الله
🇳🇵
"Penguins evolved was the first lie. Penguins were created. Stop marvelling at creation while denying its Creator. "...they exchanged the truth about God for a lie and worshiped and served the creature rather than the Creator, who is blessed forever! Amen." Romans 1:25
What?
If you really want to play that game, the concept of a God is more of a theory than Evolution is. The only difference is Evolution is a well known, and heavily supported theory. I would love to see even a shred of evidence of his existence when even his son, who died for our sins, left no traces.
"Penguins evolved was the first lie." is a hilarious statement when said with sincerity. Thank you for making me laugh.
Man created God in his own image.
bro going full schizo
Definitely gay
You would wanna ask who's his alpha top 😂