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When It Was Too Hot for Leaves
Season 4
Episode 13
Plants first made their way onto land at least 470 million years ago but for their first 80 million years, leaves as we know them today didn’t exist. What held them back?
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Understanding the Isthmus of Panama.
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Tiny mammals and a group of lizard-like reptiles shared a trait that helped them survive extinction.
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8:19
Fish evolved terrestrial traits to...stay fish?
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12:12
What was Charles Darwin really obsessed with?
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How did a relative of the red panda end up in North America?
8:10
How did the competition of spiders vs insects drive them both into the air?
12:38
Why plate tectonics don't make sense.