When a Tiny Land Bridge Triggered an Ice Age

On land, the Isthmus of Panama kicked off possibly the greatest natural experiment in the history of life on Earth. In the water, this narrow strip of land did something completely different: it divided. And that division would have a much bigger effect on the planet than the land connection ever...

13 min - Dinosaurs & Prehistory - PBS Eons

More: Ice Age & Mammoths documentaries

Read Deeper: Ice Age & Mammoths

1. After the Ice by Steven J. Mithen - View on Amazon
2. The Ice Age by Jamie C. Woodward - View on Amazon
3. The Long Summer by Brian M. Fagan - View on Amazon
4. The Little Ice Age by Brian M. Fagan - View on Amazon

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