Scientists revived a 46,000-year-old worm that was living in Siberian permafrost. When they brought it back to life, the worm started having babies. When they revived it, the worm started having babies via a process called parthenogenesis, which doesn't require a mate. According to a press release, the worm spent thousands of years in a type of dormancy called cryptobiosis. This new species, however, called Panagrolaimus kolymaensis, was dormant for tens of thousands of years longer.

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Persons: Plectus, Holly Bik, William Crow, Crow Organizations: Service, Privacy, Scientists, Washington Post, University of Hawaiʻi, PLOS Genetics, University of Florida Locations: Wall, Silicon, Mānoa, tundras