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How Humans Lost Their Tail: The Evolution Price We Still Pay Today

Millions of years ago, our ancestors carried long, flexible tails — perfect for balance, climbing, and survival in the trees. And then, in a single evolutionary shift, that ancient limb vanished forever. Today, all that remains is a tiny bone at the base of the spine… and a hidden price humanity still pays for losing its tail.

This documentary explores the strange story of how humans — and all great apes — lost one of nature’s most useful tools. A loss so dramatic that scientists still debate what triggered it, why it happened, and how it reshaped the way we walk, move, and even give birth.

In this episode, you’ll discover:

• The prehistoric ape whose mutation erased the tail for all future humans
• How standing upright forced our bodies to evolve in painful new ways
• Why tail loss came with hidden costs still felt in modern spine problems
• The rare cases of humans born with tails — and what they reveal
• How this evolutionary tradeoff helped create the first truly human ancestors

A quiet, immersive journey into one of evolution’s strangest transformations — and the ancient decision that still shapes every step we take.

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