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Sep 2021
28m 59s

Playback: The Frozen Zoo

NATIONAL GEOGRAPHIC
About this episode
San Diego is home to the world’s first frozen zoo—a genetic library where scientists are racing to bank the tissues and stem cells of disappearing animals. As scientists begin to clone endangered species, we revisit an episode from our archives that delves into what conservation looks like, as we head into a period that some scientists believe is our next gr ... Show More
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