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Watch Horizon - Season 11 Episode 32 : How on Earth Did They Do That? (2025)

A Matter of Self-Defense

Bird Brain - The Mystery of Bird Navigation

Never Too Late to Learn

The Great Fish Hunt

Pedal Power

The Writing on the Wall

Where Did the Colorado Go?

The Future Goes Boom

Fusion: The Energy Promise

The First Ten Years

This Yankee Dodge Beats Mesmerism Hollow

The Hunting of the Quark

A Noah's Ark for Europe

Bridges: When It Comes to the Crunch

Search for Life

The Secrets of Sleep

Who Needs Skills?

Hills of Promise

The Race for the Double Helix

The Immigrant Doctors

Mines, Minerals and Men

What Price Steak?

Listen and Be Loyal

Adam or Eve?

An Unholy Scramble

Do as You Are Told

The First Signs of Washoe

The Other Way

The Greatest Advance Since the Wheel?

Joey

The Neglected Harvest

How on Earth Did They Do That?

The Lysenko Affair

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Horizon - Season 11 Episode 32 : How on Earth Did They Do That? (2025)