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Eons
Why Only Earth Has Fire
Season 6
Episode 10
Earth isn’t the only watery planet in the known universe, but it is the only fiery planet. The sun is mostly hydrogen undergoing nuclear fusion, not fire. And on other planets magma from volcanoes and lightning are also not fire. To get fire, 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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10:42
Our brains actually shrank relative to our bodies in evolution.

7:23
Hidden in rocks may have animal kingdom’s oldest known predator.

9:26
Hidden in rocks may have animal kingdom’s oldest known predator.

8:09
We explore what we have in common with our ancient cousins.

9:19
We have become the ultimate niche builders.

9:58
Beneath their shell, the crustaceans hold an evolutionary mystery.

7:20
The answer is part of a decades-long debate.

10:04
In Australia, evolution built a family of deadly predators.

7:28
We focus on the DNA we got from our Neanderthals.

7:20
Seahorses are one of the ocean's worst swimmers but their origin story is great.

8:21
In recent years, Archaea's connection to us has been pretty huge and surprising.

8:53
Charles Darwin encountered a tiny fox-like creature during his famous voyage.