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Eons
Season 2 • Episode 4 • The Great Snake Debate
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Eons Season 2, Episode 4: The Great Snake Debate
90 million years ago, an ancient snake known as Najash had...legs. It is by no means the only snake to have limbs either. But what’s even stranger: we’re not at all sure where it came from. Watch Eons Season 2, Episode 4 The Great Snake Debate in HD free online. Enjoy high-quality streaming of Eons Season 2, Episode 4 and share your thoughts in the comments below!
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What if I told you that, more than two billion years ago, some tiny living thing started to live inside another living thing … and never left? And now, the descendants of both of those things are in you?
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The Time Terror Birds Invaded
About 5 million years ago, a new predator made its way from the south and onto the coastal plains of North America. It was a giant, flightless, carnivorous bird and came to be known by one of the coolest and most richly earned nicknames in all of paleontology: the terror bird.
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Untangling the Devil's Corkscrew
In the late 1800s, paleontologists in Nebraska found huge coils of hardened sand stuck deep in the earth. Local ranchers called them Devil's Corkscrews and scientists called them Daemonelix. It was clear these corkscrews were created by some form of life, but what?
10 min
The Great Snake Debate
90 million years ago, an ancient snake known as Najash had...legs. It is by no means the only snake to have limbs either. But what’s even stranger: we’re not at all sure where it came from.
10 min
The Whole Saga of the Supercontinents
The study of natural history is the study of how the world has changed but Earth itself is in a constant state of flux -- because the ground beneath your feet is always moving. So if we want to know how we got here, we have to understand how "here" got here.
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From the Cambrian Explosion to the Great Dying
The first era of our current eon, the Paleozoic Era, is probably the most deceptively fascinating time in Earth’s history. With near constant revolutions in life, punctuated by catastrophic extinctions, it is also one of the most chaotic.
10 min
How Sex Became a Thing
We don’t know which living thing was the very first to arrive at the totally revolutionary process that is sexual reproduction but we can follow the history of how (and why) sex became a thing.
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The Other Explosion You Should Know About
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How the Turtle Got Its Shell
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What a Dinosaur Looks Like Under a Microscope
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10 min
The Most Useful Fossils in the World
For decades, one of the most abundant kinds of fossils on Earth, numbering in the millions of specimens, was a mystery to paleontologists. But geologists discovered that these mysterious fossils could basically be used to tell time in the deep past.
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Inside the Dinosaur Library
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How the Squid Lost Its Shell
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10 min
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Ratites have spread to Africa, Australia, New Zealand, and South America. And there are fossils of Ratites in Europe, Asia, and North America too. That’s a lot of ground to cover for birds that can’t fly. So how did Ratites end up all over the world?
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10 min
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10 min
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If you’ve ever been to, or lived in, or even flown over the central swath of North America, then you’ve seen the remnants of what was a uniquely fascinating environment. Scientists call it the Western Interior Seaway, and at its greatest extent, it ran from the Caribbean Sea to the Canadian Arctic.
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10 min
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