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Ice Age Zombie Worm Revival
April 30 , 2026
2 days
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- Scientists revived a 24,000-year-old microscopic organism from Siberian permafrost and observed it reproducing.
- The organism is a bdelloid rotifer (a multicellular freshwater animal), often called a “zombie worm” in the media.
- It was discovered near the Alazeya River in Siberia and dated to the Late Pleistocene period using radiocarbon dating.
- It remained frozen in Yedoma permafrost (ice-rich permanently frozen soil) at about −20°C for thousands of years.
- It survived through cryptobiosis (a state of almost zero metabolism where life processes nearly stop).
- After thawing in laboratory conditions, it resumed movement, feeding, and reproduced asexually, producing clones.
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