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SciShow
Joseph Stalin Was Very Wrong About Agriculture
Soviet agronomist Nikolai Ivanovich Vavilov was obsessed with plants. Especially finding out where domesticated crops first came from. And out of his research came a proposal that certain crops, like rye and oats, were evolutionary...
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How To Detect Faster Than Light Travel
Warp drives may or may not be possible, but if they are then could a distant alien civilization’s warp fields produce gravitational waves that we could see here on Earth? According to a recent study.. Actually maybe, at least eventually....
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Why The Giraffe Got Its Neck
How and why the giraffe's neck emerged in the first place has been a mystery that generations of biologists have argued over – one that has made us reconsider our understanding of how evolution actually works over and over again.
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That Time The Ocean Lost (Almost) All Its Oxygen
This is the story of how our planet rescued itself from extreme conditions in the Cretaceous Period, at the cost of essentially suffocating the oceans for half-a-million years.
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You're Living On An Ant Planet
How did ants take over the world? Well, it looks like they didn’t achieve world domination all by themselves. They may have just been riding the wave of a totally different evolutionary explosion.
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We Helped Make Mosquitoes A Problem
Around 6,000 years ago, in the Sahel region of Africa, a lone female mosquito buzzed through the lush, green savannah. She couldn’t know it, but the planet itself was about to change in ways that would see her descendants evolve to live...
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Do Thunderbeasts Prove Giant Animals Are Inevitable?
The journey the thunder beasts took to reach such mega proportions from such humble beginnings forces us to ask an important question, one that paleontologists have been asking for more than a century: from an evolutionary perspective,...
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The Huge Extinctions We Are Just Now Discovering
What graptolites tell us is a story of incredible changes in the ocean, of periods where the oceans became poisonous and suffocating before eventually clearing up again. They unlock extinctions and recoveries that scientists didn't see....
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Beans & Bees (Not Bats) Gave Us Butterflies
Turns out, instead of having bats to thank for the existence of butterflies, the groups we should actually be thanking are…bees and beans.
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Why Only Earth Has Fire
To get fire, which exists only on Earth, it took billions of years of photosynthesis – which means fire can’t exist without life. And fire and life have been shaping each other ever since.
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How Ancient Microbes Rode Bug Bits Out to Sea
Tiny exoskeleton fragments may have allowed some of the most important microbes in the planet’s history to set sail out into the open ocean and change the world forever.
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Our Most Mysterious Extinct Cousins
There was a group of hominins, those creatures more closely related to us than to chimpanzees, that did take a different, parallel journey from our ancestors. Our paths ran beside each other - and potentially even crossed at times - but...
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Animals Are Older Than We Thought
What are animal-like fossils doing in rocks a billion years old, and what does that mean for our understanding of their evolution and geologic time itself? Turns out, there might've been a long, slow-burning fuse that ultimately ignited...
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Why Is It So Hard to Tell the Sex of a Dinosaur?
While we think we know a lot about dinosaurs – like how they moved and what they ate – for a long time, we haven’t been able to ID one seemingly basic thing about their biology... Which are males and which are females?
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How Snake Venom Sparked An Evolutionary Arms Race
For some, the rise and spread of venomous elapids was just another challenge to adapt to. For others, it was a catastrophe of almost apocalyptic proportions. And we humans are no exception, because it seems that when elapids slithered...
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What Was The Earliest Surgery?
When did practicing medicine - in its varied, complex forms (from sharing medicinal plants to the earliest surgeries) - become something that we actually started doing? While it’s a hard question to answer, it’s possible that our...
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What Will Earth Be Like 300 Million Years From Now?
We spend a lot of time here on Eons looking backwards into deep time, visiting ancient chapters of our planet’s history. But this time, we’re taking a look towards the deep future. After all, the story is far from over.
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The Hazy Evolutionary History of Cannabis
How did such a strange plant like cannabis come to be in the first place? When and where did we first domesticate it? And why oh why does it get us high?
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No Single Cradle of Humankind
It would take decades for paleontologists to realize that maybe there wasn’t just one so-called "cradle of humankind," and realize that maybe they’d been asking the wrong question all along.
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The Second Time Sponges Took Over The World
Researchers have discovered a piece of a weird, but critical, time in the deep past…a time when the first-ever mass extinction may have turned Planet Earth into Sponge World.
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When The Atlantic Ripped Open A Supercontinent
While the eruptions of the volcanoes along the Mid-Atlantic Ridge usually don't trouble us, their birth was once responsible for ripping a supercontinent apart and creating the Atlantic Ocean that we know today.
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When India Was An Island
We need to talk about the biggest break-up of all-time: the break-up of the supercontinent Pangea, and how, ultimately, when India smashed back into Asia, it traded one form of evolutionary isolation for another.
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When the Amazon Flowed Backwards
What did life look like when the Amazon watershed flowed backwards? How did its direction shape the evolution of life around it? And what force could have possibly been strong enough to up-end one of the world’s mightiest rivers between...
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When Neandertals Became Apex Predators
Climbing to the summit of the Eurasian food chain was one of the Neandertals’ most impressive evolutionary feats, but in the end, it may have actually been what doomed them.