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The Disturbing Ways Ancient Humans Survived Winter — Transcript

by Ink Explainer · 2,550 words · 371 segments · language en · Watch on YouTube

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0:00Right now, you are warm. You might not
0:02even notice it, but you are. There's a
0:03number on a wall somewhere in your home,
0:05and if the air ever drops below it, a
0:07machine kicks on and fixes the problem
0:09before your body even registers a
0:10complaint. You walk from a heated house
0:12to a heated car to a heated building,
0:14and the coldest part of your entire day
0:16is probably the 10 seconds it takes to
0:18get from one to the other. Winter for
0:21you is an inconvenience. It's scraping
0:23ice off a windshield. It's a heavier
0:25jacket. It's complaining that it gets
0:27dark too early. But for almost the
0:28entire human history, winter was not an
0:30inconvenience. Winter was the season
0:32that tried to kill you, and it didn't
0:34try just once or in just one way. It
0:36came at you from four different
0:38directions at the same time. The cold
0:40could kill you. The hunger could kill
0:41you. The animals could kill you. And the
0:43long, dark, endless nights could break
0:46you before any of the others got the
0:47chance. So, the question is simple. For
0:49hundreds of thousands of years, with no
0:51heating, no supermarkets, no walls that
0:53actually sealed out the wind, how did
0:55human beings survive winter at all?
0:57Because they did. Your ancestors walked
0:59straight into some of the coldest
1:00environments on the planet and came out
1:02the other side. And the way they did it
1:04is one of the most impressive things our
1:05species has ever pulled off. Let's start
1:07with the most obvious threat, the cold
1:09itself. Here's something most people
1:11don't realize. A human being is a
1:13tropical animal. Our bodies evolved in
1:15the warm parts of Africa, and left to
1:17its own devices, a naked human loses
1:19heat fast. In cold conditions, you can
1:21slip into hypothermia in a matter of
1:23hours. Your fingers stop working. Your
1:25thinking slows down. And once your core
1:27temperature drops far enough, your body
1:29simply stops. No claws, no thick fur, no
1:32natural insulation worth mentioning. On
1:34paper, we are one of the worst equipped
1:35large animals on Earth for surviving a
1:37hard winter. And yet, humans didn't just
1:39survive the cold, they walked into it on
1:41purpose. They spread north into ice age
1:43Europe, into Siberia, into places where
1:46winter temperatures dropped far below
1:48anything the human body can handle
1:49unprotected. So, how? The first answer
1:52is fire, and we'll come back to what
1:53fire did for the long winter nights
1:55later. But fire has a problem. Fire only
1:58warms the side of you that's facing it.
2:00It doesn't travel with you. The moment
2:02you step away from the flames to go hunt
2:04or gather wood, the cold comes straight
2:05back. Fire alone was never going to be
2:07enough. What ancient humans needed was a
2:09way to carry warmth with them, wrapped
2:11around their bodies everywhere they
2:13went. And that brings us to what might
2:15be the single most important winter
2:17technology humans ever invented,
2:19clothing. But, not the kind you're
2:20probably picturing. For a long time, the
2:23assumption was simple. It's cold. So,
2:25you drape an animal hide over your
2:26shoulders and you're done. And for a
2:28while, that's exactly what humans did.
2:30But, a hide thrown over your back leaves
2:32gaps everywhere. Wind gets in at the
2:34sides. Your arms are exposed. It slips
2:37off when you move. A draped skin is
2:39better than nothing, but in a real
2:40winter, better than nothing still gets
2:42you killed. The breakthrough was
2:43learning to cut hides into pieces and
2:45sew them back together into shapes that
2:47actually fit the human body. Fitted
2:49sleeves, closed sides, a garment that
2:51trapped a layer of warm air against your
2:53skin and held it there while you moved.
2:55This is the difference between a blanket
2:56and a coat. But, here's the problem. To
2:58make this all work out for you, you need
3:00a needle. And not just any needle, a
3:02needle with an eye, a tiny hole to carry
3:04the thread. This is a genuinely
3:06difficult thing to make. You have to
3:07take a sliver of bone, grind it down
3:09thin, and then drill a hole through it
3:11that's small enough to be delicate, but
3:13strong enough not to snap.
3:14Archaeologists have found bone needles
3:16like this dating back more than 40,000
3:18years, and in some sites, even older.
3:20These are precise, deliberate tools.
3:22Whoever made them understood exactly
3:24what they were for. And the thread
3:25itself came from the animals, too.
3:27Sinew, the tough fibers that connect
3:29muscle to bone, could be stripped,
3:31dried, and used to stitch hides together
3:33into something that held. Layer a
3:34garment like that, fur turned inward
3:36against the skin, and suddenly, a human
3:38being could stand in air cold enough to
3:40kill and stay alive inside their own
3:42pocket of warmth. Sewn clothing wasn't a
3:44comfort. It was the piece of technology
3:46that let our species leave the warm
3:48world it evolved in and walk into the
3:49cold parts of the planet. Without the
3:51needle and the thread, there is no human
3:53being in Ice Age Siberia. So, you're
3:55warm now, or at least warm enough. You
3:57can move, you can work, you can hunt.
4:00But, the sun is going down, the
4:01temperature is dropping even further,
4:03and you have a second problem that
4:04clothing can't solve. You need somewhere
4:06to survive the night. The obvious answer
4:08is a cave, and caves were valuable,
4:10genuinely valuable. A deep cave holds a
4:13steady temperature, blocks the wind, and
4:15keeps the snow off you. But, here's the
4:17thing that nobody tells you about caves.
4:19There aren't many of them. A good, dry,
4:21defensible cave in the right spot was
4:23rare. And if you found one, you probably
4:25weren't the only one who wanted it.
4:26Other groups also wanted it, too. You
4:28couldn't count on a cave. Most of the
4:30time, if you wanted somewhere to survive
4:32the winter, you had to build it
4:33yourself. And this is where it gets
4:35remarkable. In a place called Mezhyrich,
4:37in what is now Ukraine, archaeologists
4:39found the remains of shelters built
4:40around 15,000 years ago. But, there was
4:42almost no wood on that landscape, and
4:45almost no stone. So, the people there
4:47built their homes out of the one
4:48material they had in an enormous
4:50quantity. I'm talking about mammoth
4:52bones. They stacked and interlocked the
4:54bones of dozens of mammoths into round,
4:56dome-shaped huts. Hundreds of bones in a
4:59single dwelling. Jawbones layered like
5:01roof tiles. Massive tusks arched over
5:03the entrances. These were not quick,
5:05throwaway shelters. They were
5:06substantial, engineered structures built
5:08to hold up through a brutal winter. And
5:10they took real planning and real labor
5:12to put together. And inside a shelter
5:14like that, you did everything you could
5:16to hold the warmth in. You lined the
5:17floor. At a site in South Africa,
5:19archaeologists found evidence of bedding
5:21made from layers of grasses and leaves,
5:24carefully arranged, dating back an
5:25astonishing 77,000 years. People were
5:28making their shelters comfortable before
5:30our species had even left Africa. And it
5:32didn't stop at the floor, because think
5:34about that mammoth bone hut for a
5:35second. It's built out of bones, and
5:37bones don't fit together perfectly.
5:39There are gaps everywhere. And every
5:41single gap is a doorway for the wind.
5:43So, they sealed them layer by layer.
5:45They stretched animal hides across the
5:46inside of the walls and pinned them over
5:48the openings. They cut blocks of sod and
5:50stacked them against the outside, and
5:52some groups even packed snow against
5:54their shelters because a thick layer of
5:56snow is actually a very good insulator.
5:58It traps air, and trapped air holds
6:00heat. Layer by layer, the wind ran out
6:02of ways to get inside. A shelter wasn't
6:04just walls anymore. It was a system, and
6:07it kept people alive on nights that
6:08should have killed them. But a warm
6:10shelter creates a new problem, and it's
6:11a big one. To keep a fire going through
6:14a long winter, you need fuel, a lot of
6:16it. And gathering fuel means someone has
6:18to keep going outside into the cold over
6:20and over all winter long. You are tied
6:22to that shelter. You can't just wander,
6:25and that means the food you need has to
6:26either be nearby, or it has to already
6:29be stored, which brings us to the third
6:31threat, and honestly the one that killed
6:33the most people, hunger. Here's the part
6:35about winter that people forget because
6:36we've completely erased it from our
6:38lives. In winter, the world stops
6:40producing food. The plants die back or
6:42go dormant. The berries are gone. The
6:44roots are harder to find and harder to
6:45dig out of frozen ground. Many of the
6:47animals have either migrated away or
6:49gone into hiding or grown lean and
6:51desperate themselves. For a
6:52hunter-gatherer, winter isn't just cold.
6:54It's a season when the land itself stops
6:56feeding you, and that turns survival
6:58into a math problem. You have to gather
6:59enough food during the warm months to
7:01carry a group of people through months
7:03when almost nothing new is coming in.
7:04So, ancient humans became experts at
7:06storing food, and they had a few
7:08brilliant ways to do it. The first was
7:09drying. If you slice meat thin and let
7:12it dry out either in the sun or over the
7:14low smoke of a fire, you pull the
7:16moisture out of it, and without
7:17moisture, it doesn't rot. Dried meat
7:19could last for months. The smoke did
7:21double duty, adding a layer of
7:22preservation on top of the drying. A
7:24rack of drying meat in autumn was, in a
7:26very real sense, a group's insurance
7:28policy against starving in February. The
7:29second method was to use the cold itself
7:32as a tool. The frozen ground was a
7:33natural freezer. Dig a pit down into the
7:35permafrost, pack it with meat from a big
7:37kill, and the cold would keep it edible
7:39for a very long time. Winter, the thing
7:41trying to starve you, became the very
7:43thing that preserved the food keeping
7:45you alive. But the most valuable food of
7:47all in winter wasn't meat exactly. It
7:49was fat. When you're burning enormous
7:51amounts of energy just to stay warm,
7:53lean meat isn't enough. Fat is the most
7:55concentrated source of energy there is,
7:57and in the depths of winter it was worth
7:58more than almost anything. Ancient
8:00humans rendered animal fat down into
8:01tallow, a stable, storable, energy dense
8:04fuel for the human body. They mixed
8:06dried meat with fat to make a dense,
8:08long-lasting food that packed a huge
8:10number of calories into a small portable
8:12package. In a season where every calorie
8:14was a battle, fat was the difference
8:15between a group that made it to spring
8:17and one that didn't. So now you're warm,
8:19you're sheltered, and you've stored
8:20enough to eat. You've beaten three of
8:22winter's four death sentences, but
8:23there's one more, and it's the one
8:25people almost never think about. Because
8:27it doesn't attack the body, it attacks
8:29the mind, the darkness. In winter,
8:31especially the further north you go, the
8:32days get short and the nights get long,
8:35brutally long. You might have only a
8:36handful of hours of usable daylight, and
8:38then 15, 16 hours of cold darkness with
8:41nothing to do but wait. You can't travel
8:43far. You can't hunt well in the dark.
8:45You are stuck in a small space with the
8:47same few people for a very long time,
8:49night after night after night. And that
8:51kind of confinement, that endless
8:53waiting, can wear a person down in a way
8:54that cold and hunger never could. But
8:56here's what ancient humans did with
8:58those long dark hours. They didn't just
9:00endure them, they filled them. This was
9:02the time for all the work that didn't
9:03need daylight or good weather, sitting
9:05by the fire, repairing tools, shaping
9:07new spear points, sewing and mending
9:09clothing for the rest of the winter,
9:10twisting plant fiber into cordage,
9:12carving. The long night wasn't wasted
9:14time. It was workshop time. The hours
9:16when a group prepared everything it
9:17would need the moment the weather broke.
9:19And it was more than just work. Around
9:21that winter fire in the dark is where
9:23people talked, where the older members
9:24of the group passed down everything they
9:26knew to the younger ones, where the
9:27stories got told, the same stories over
9:30and over, carrying the group's memory
9:32and its knowledge across the
9:33generations. A huge amount of what we
9:35think of as human culture, the myths,
9:37the songs, the shared knowledge, was
9:38forged in exactly these conditions.
9:40People pressed together against the
9:42dark, keeping each other warm, keeping
9:44each other sane, keeping each other
9:45human until the light came back. Winter
9:47didn't just test the body. In a strange
9:49way, it built the mind. And when you
9:51step back and look at all of it
9:52together, something surprising comes
9:54into focus. Winter didn't just get
9:55survived. Winter shaped us. Think about
9:58it. The pressure of the cold is what
9:59pushed humans to invent fitted clothing.
10:01The lack of caves is what pushed them to
10:03invent real architecture. food gap is
10:05what pushed them to invent storage and
10:07preservation. And the long dark nights
10:09are a huge part of where culture itself
10:11got made. Nearly every one of the
10:12technologies that let our species spread
10:14across the entire planet into every
10:16climate on Earth was forged in the
10:18effort to survive the cold. The hardest
10:19season didn't just fail to kill us. It
10:21made us more capable than we had any
10:23right to be. So, here's the full
10:24picture. Winter came at your ancestors
10:26with four weapons. The cold, and they
10:28answered it with fire and with sewn
10:30fitted clothing. The night, and they
10:32answered it by building shelters out of
10:33whatever the land gave them. Even the
10:35bones of mammoths. The hunger, and they
10:37answered it by drying, freezing, and
10:39rendering their food into stores that
10:40could carry them for months. And the
10:41darkness, and they answered it by
10:43turning the longest, coldest nights into
10:45the workshop and the classroom where
10:47human culture was born. Every single
10:49winter was a test that a huge number of
10:51people did not pass. Survival wasn't
10:53guaranteed. It was earned every single
10:55year through preparation and skill and
10:57sheer stubbornness. And now, look at
10:59you. You turn a dial and the room gets
11:01warm. You open a door and there's food
11:03that was grown on the other side of the
11:04planet in the middle of December. You
11:06complain that the sun sets too early
11:08from inside a house your ancestors could
11:09not have imagined, having never once in
11:11your life felt the specific fear of
11:13watching the first snowfall and
11:14wondering if you had stored enough to
11:16see the spring. You don't survive winter
11:18anymore. You barely notice it. And
11:19that's not because winter got any
11:20weaker. It's because a hundred thousand
11:22years of human beings freezing and
11:24starving and huddling in the dark slowly
11:26figured out how to beat it, one
11:27invention at a time, so that you would
11:29never have to.

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